What is rational exponent form?

Abouncy ball is released from a certain height. on the first bounce, it travels 32cm. with each subsequent bounce, it travels 9/10 the distance of the previous bounce. what is the total distance that the ball has traveled when it completes its 25th bounce?

The vertices of a triangle are a(7.5), b(4,2), and c19. 2). what is

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me