Question

On a math test, Sarah has to identify all the coefficients and constants of the expression 4+n+7m. Sarah identifies the only coefficient as 7 and the only constant as 4.

Answer 1

Explanation:

doesn't that mean that n & m are variables

Answer 2

Explanation:

1. The answer is 7
2. The answer is 4 and n
3. Her error was that she only put 4 as the constant but constants are both numbers and letters on their own.