What is the cost of 20 ping pong balls, 2 ping pong paddles , 3 softballs, and 1 soccer ball?

Jessica is a custodian at oracle arena.she waxes 20 m2 of the floor in 3/5 of an hour. jessica waxes the floor at a constant rate.at this rate how many sqaures meters can she wax per hour

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.