Question

Grace and William use the same calling card. The card charges one rate for calls made within the United States and another rate for calls made to Mexico. Last month Grace used the calling card to make 38 minutes of phone calls within the United States and 22 minutes to her friend in Mexico, for a total charge of $6.96. William used the calling card to make 47 minutes of phone calls within the United States and 17 minutes to his friend in Mexico, for a total charge of $6.26. What is the rate that the calling card charges to make phone calls to Mexico?

Answer 1

a)$0.05 per minute
b)$0.08 per minute
c)$0.23 per minute
d)$0.30 per minute