Question

Oliva buys 6 packs of muffins. She uses a coupon and saves 3$ off the total. which expression represents her total cost?

A. 6m - 3
B. 6 + 3
C. 6 - 3m
D. 6m + 3​

Answer 1

A. 6m - 3

Explanation:

Saving 3 dollars off of a coupon lowers the price therefore making it subtraction. 6m is the amount of the muffins cost, m being the unknown price of each muffin.

Answer 2

A. 6m - 3

Explanation:

6m represents finding the total cost for the 6 packs of muffins.

When you use PEMDAS or GEMDAS (whichever you know better), they both make you solve 6m first which means you subtract $3 after you find the total amount for the packs of muffins.

After you figure that out, you subtract the $3 from the total since it's a coupon and will save you $3 instead of adding it to the total price.

hope this makes sense and help :)