Y= 2x-8,what is the slope and the y-intercept m=2 and b=8 m=2 and b=-8 m=8 and b=2 m=-8 and b=2

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

Which of the following answers is 5/25 simplified? 1/5 5/5 2/5 1/25

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.