A 7 foot long board is propped against the wall of a house. The board forms a 60 ° angle with the ground. How far is the base of the board from the wall?

A. 3 ft
B. 2.5 ft
C. 4 ft
D. 3.5 ft

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?

Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?

Zahra wants the equation below to have an infinite number of solutions when the missing number is placed in the box.