Semicircles are constructed on the three sides of a triangle as shown below. Find the area of the shaded region.

The mean temperature for the first 4 days in january was 7°c. the mean temperature for the first 5 days in january was 5°c. what was the temperature on the 5th day?

Last saturday, the museum box office sold 281 tickets for a total of $3,954. adults ticket cost $15, and students ticket cost $12. how many of each kind of tickets were sold?

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup