Explanation

If r₁ and r₂ are roots of a quadratic equation, then it can be written as:

$$(x - r₁)(x - r₂) = 0$$

Substituting r₁ = 2 and r₂ = -3:

$$(x - 2)(x + 3) = 0$$

Explanation

For the second question, let the two numbers be 3x and 2x. The sum is given as 50, so:

$$3x + 2x = 50 quad Rightarrow quad 5x = 50 quad Rightarrow quad x = 10$$

Thus, the smaller number is:

$$2x=2\times 10=20$$

Explanation

Pakistan imports a wide range of commodities from Africa, including petroleum, coal, tea, cotton, and copper. 

In 2020, Pakistan imported $2.25 billion worth of products from Africa. 

In 2020, Pakistan imported $547 million worth of coffee and tea from Africa. 

Pakistan also imports crude oil, iron, steel, inorganic chemicals, and textile products from Africa

Explanation

The word "Level" in itself is not an onomatopoeia or a verb like "was leaving."

Among the given options, "parallel" is the most relevant choice because:

"Level" can mean even, flat, or parallel to a surface.

It is not synonymous in itself (though it has synonyms).

It is not an onomatopoeia (a word that mimics sound).

"Was leaving" is a verb phrase, while "Level" is usually a noun, verb, or adjective.

Explanation

Formative Assessment is considered as a way of assessing during teaching and learning process for feedback into teaching and learning processes

A good example of a formative assessment is pop quizzes

Why the other options are not formative assessments:

End-of-term exam:

This is considered a summative assessment, as it measures overall learning at the end of a course.

Grading projects:

While grading projects can provide feedback, if done only at the end of a unit, it would be considered more summative than formative.

Standardized tests:

Similar to an end-of-term exam, standardized tests are usually considered summative assessments. 

Explanation

Passive Sentence: "Sara was married by Ahmed."
In the passive voice, Sara becomes the subject of the sentence, and Ahmed, acting, becomes the agent introduced with "by."

Explanation

Let's solve the expression step by step following BODMAS/BIDMAS (Brackets, Orders, Division/Multiplication, Addition/Subtraction) rules:

18 - 6 / 2 + 4 * 3

1. Division first:
   6 / 2 = 3
   Expression becomes: 18 - 3 + 4 * 3

2. Multiplication next:
   4 * 3 = 12
   Expression becomes: 18 - 3 + 12

3. Now, solve from left to right:
   18 - 3 = 15
   15 + 12 = 27

Explanation

The type of motivation that comes from internal satisfaction is intrinsic motivation. 

intrinsic motivation:

Source: Comes from within the individual.

Focus: Personal satisfaction and enjoyment of the task itself.

Example: A musician practicing because they love music, not to win a competition. 

Explanation

Adverbs of frequency (e.g., rarely, often, always) are typically placed before the main verb but after the verb "to be."

• (A) "Rarely I go to the park" → Incorrect word order.
• (B) "I rarely go to the park" → Correct placement of "rarely" before the main verb "go." 
• (C) "I go rarely to the park" → Unnatural placement of "rarely."
• (D) "Rarely go I to the park" → Inverted word order, not standard in affirmative sentence