Question

you buy a cellphone plan that gives you up to 10 gb of data for $20 per month. during a particular month, you use only 4 gb. what is your per - gb cost for that month?
choose the correct answer below.
a. $20
b. $5
c. $2
d. $4

Explanation:

Step1: Identify total cost and data used

Total cost = $20, Data used = 4 GB

Step2: Calculate per - GB cost

Per - GB cost = $\frac{Total\ cost}{Data\ used}=\frac{20}{4}$

Answer:

B. $5