Explanation

Explanation

1,000,000,000 one billion, is the natural number following 999,999,999 and preceding 1,000,000,001. One billion can also be written as b or bn.

Explanation

0.2 × 0.02 = 0.004

Explanation

Let's denote the unknown number as x:

x + 21 = 75

Step 1: Solve for x.

x = 75 - 21

x = 54

Explanation

240% of 1/8

=240/100*1/8

=24/10*1/8

=12/5*1/8

=12/40=3/14

=0.3

Explanation

Step 1: Follow the order of operations (PEMDAS/BODMAS)

First, calculate 6 × 4 × 0.5

Step 2: Calculate 6 × 4

6 × 4 = 24

Step 3: Multiply 24 by 0.5

24 × 0.5 = 12

Step 4: Add 2 to the result

2 + 12 = 14

Explanation

√144 = 12, √25 = 5 →

4×12 + 3×5 = 48 + 15 = 63

Explanation

1 kg = 1000 g.

So 7 kg = 7 × 1000 = 7000 g.

Explanation

2 is a prime number because it has only two distinct factors: 1 and itself (2).

Prime numbers play a fundamental role in mathematics, particularly in number theory.

Explanation

• Every integer can be expressed as a ratio of integers, i.e., a fraction with a denominator of 1.
• For example, the integer 5 can be written as 5/1, which is a rational number.