Question

Math question screen shot down below

Answer 1

b+7,Option 1

Explanation:

Let the number of buttons Cole had at first be a,

We know,now he has b buttons remaining which is 7 less than a

In other words,

a-7=b

or,a=b+7

Answer 2

A

Explanation:

If the current amount he has is B and its 7 LESS then he had earlier add 7 back to find the amount he add at the start.