Doug and Charles live 360 miles apart they start at the same time and travel toward each other Doug's speed is 5 mph greater than Charles is if they me in 4.5 hours find their speeds

Multiply. write your answer in simplest form. 3/8 x 5/7

Aladder that is 20ft long is leaning against the side of a building. if the angle formed between the ladder and the ground is 75 degrees how far is the bottom of the from the base of the building?

Given that sin∅ = 1/4, 0 < ∅ < π/2, what is the exact value of cos∅? a. (√4)/4 b. (√15)/4 c. (4π)/2 d. (4√2)/4