CAYLEY 2008 Problem 10

Vivian’s cell phone bill includes the graph showing her cell phone use for the month. She is charged

  • \$20 per month, plus
  • 10¢ per minute for daytime calls, plus
  • per minute for evening calls after the first 200 evening minutes.(The first 200 evening minutes are free.)

What is her total cell phone bill for the month shown?

Image

Answer Choices
A. \$25
B. \$40
C. \$45
D. \$70
E. \$75