Write a piecewise function to represent the following scenario(Only 2 hours to answer!)

Answer D

f(x)=3x          if 0 <= x <= 10

f(x)=15x-120  if x > 10

Step-by-step explanation:

Hello,

The first 10GB of data he uses costs $3 per GB

so we can write

if 0<=x<=10 f(x)=3x

and f(10)=3*10=30

and once he exceeds the 10Gb the company charges $15 for each GB

so if x >10 f(x)=15x+b where b is a real

And f(10) should be 30 so 15*10+b=30 <=> b = 30-150=-120

so f(x) = 15x-120

hope this helps

answer: the first one

step-by-step explanation: use a calculator and divide the minutes by the dollars.

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step-by-step explanation:

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