Which of the following formulas is NOT correctly entered in Excel? A) =C1+15 B) =SUM(A1:A5) C) =A1*B1 D) C1+15

Which of the following formulas is NOT correctly entered in Excel? A) =C1+15 B) =SUM(A1:A5) C) =A1*B1 D) C1+15

Explanation

In Excel, formulas must begin with an equals sign (=).

Options A, B, and C are all valid formulas.

Option D (C1+15) is not a valid formula because it lacks the = sign.