2√50 + 5√32

Can someone please show me how you get the answer

Asailor is looking at a kite. if he is looking at the kite at an angle of elevation of 36and the distance from the boat to the point where the kite is directly overhead is 40 feet, how high is the kite?

There are 93 calories in a small candy bar how many calories are ther in a half dozen small candy bars?

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)