1. let f(x) = 5x + 3 and g(x) = 3x
what is (f + g)(x)?

Geometry answer picture question pls . reason and statements

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document

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?