Maria called her sister long distance on Wednesday.
The first 5 minutes cost $3, and each minute after
that costs $0.25. How much did it cost if they talked
for 15 minutes?
Step-by-step explanation: The first 5 minutes are 3$, and the additional 10 minutes are .25$ a piece. You multiply 10 minutes by .25$ to get 2.5$. Now, you add the 3$ and 2.5$ to get 5.50$.