Which two points satisfy y = -x2 + 2x + 4 and x + y = 4?

Tickets to an orchestra concert cost $25.50 apiece plus a & 2.50 handling fee for each order. if jamal spent $79 how many ticket did he purchase

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?

The circle below is centered at the point (3, 1) and has a radius of length 2. what is the equation?