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: there are x+184 pages in olivia's book.

step-by-step explanation:

let the total number of pages in the book which olive has already read be x.

then if olive has 184 pages left to read, then the total number of pages are in olive's book= pages she has read+pages she has left to read

therefore, the total number of pages in olivia's book=

hence, there are x+184 pages in olivia's book.