Solve the problem.When making a telephone call using a calling card, a call lasting 5 minutes costs $1.50. A call lasting 12 minutes costs $2.90. Let y be the cost of making a call lasting x minutes using a calling card. Write a linear equation that models the cost of making a call lasting x minutes.
A. y = -0.2x + 2.5
B. y = 5x - 
C. y = 0.2x + 0.5
D. y = 0.2x - 9.1
Answer: C
Mathematics
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Add or subtract. Write the answer in lowest terms.
+ 
- 
A. 1
B. 
C. 
D. 
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