Susan’s cell phone plan allows her to use 835 minutes per month with no additional charge. She has 167 minutes left for this month. How many minutes has she already used this month?

Susan has used 668 minutes this month.

Step-by-step explanation:

This is kinda easy

Since it already says her phone plan allows her to use 835 minutes per month

And that she only has 167 minutes left

Basically all u wanna do is subtract how many minutes she has left from how many she gets per month

835-167=668

To recheck your answer all u would wanna do is addition

668+167=855

But yet again your final answer is 668