Find the sum or difference of the rational numbers. A. -2.5 + 10 B. -4.4- (-1 ) C. - 135.4 + 781

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

Abcd is a square. what is the measure of angle bac

Askateboard ramp is in the shape of a right triangle what is the height of the ramp