Given F(x) = -x^2+10x-3, find f(9)

The rumpart family is building a new room onto their house. the width of the new room will be 16 feet. the length of the room will be 4% greater than the width. write an expression to find the length of the new room. what will be the area of this new room?

Solve the inequality and graph 6j - 7 < 5

Aramp rises 4 feet over a distance of 10 feet. what is the length of the ramp?