Question

Gina is comparing four long distance phone plans. The table shows the cost of each plan.

Cost of Phone Plans
Plan
Monthly Fee
Cost per Minute
A
$15
$0.05
B
$5
$0.15
C
$10
$0.10
D
$20
$0.20

If Gina plans to use 500 minutes each month, the most cost effective plan is
.

Answer 1

Plan A.

Calculations:
- A: 15 + 0.05(500) = 15 + 25 = $40
- B: 5 + 0.15(500) = 5 + 75 = $80
- C: 10 + 0.10(500) = 10 + 50 = $60
- D: 20 + 0.20(500) = 20 + 100 = $120