Question

Expressions can be written using a combination of numbers and letters. Those values can also be described using words. Choose ALL expressions that are correctly described in words.

which is it

Answer 1

A: 3a + 9: the sum of three times a and nine

C:15b − 10: ten less than the product of fifteen and b

Explanation:

I just answer this question in US, and I got C right but choose the wrong answer for A.

These are the right answers.