Which of the following side lengths form a right triangle? * 0 4,6,8
8, 10, 12
9, 12, 15
20, 25, 30

HELP PLZ

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?

When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?