Help with some math
#1
I am completely stuck on this task and need help

A fictional phone company offers a plan where you get 80MB free per month, if you use more than 80 you pay 5$ per MB

What is the price you pay if you use 115MB?

Problem: The book claims its 2.83$, how?
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#2
The book is wrong, in that case.
Simple math.

115 (actual used data) - 80 (phone plan) = 35 extra MB

35 x 5 = $175
#3
That book's not right... at all. I don't see how it could even have cents as it's in lots of $5.

Sincerely,
ArcHammer
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+Rep
#4
2.83$? Must be some sort of mistake lol
#5
So I did the math, this came out.

115 (used MB)-80 (Phone plan) = 35

so if we multiply it for only 2, it = $70, but if we multiply it by $2.83 it gives us: $99.05
Mexico is not safe


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