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?

There are a total sales of 2,000 dollars on monday on tuesday sales dropped 10% on wednesday sales dropped another 20% compared with tuesday from wednesday to thursday sales increases by an equal amount to 25% of monday total sales what is the net change in dollars on total sales from monday to tuesday