The height of a ball in feet is modeled by f(x) = -16x^2 + 80x, which is shown below, where x is the time in seconds after it is hit. How long is the ball in the air? Explain how you know.​

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

Use properties to rewrite the given equation. which equations have the same solution as 2.3p – 10.1 = 6.5p – 4 – 0.01p?

1.two more than the quotient of a number and 6 is equal to 7 use the c for the unknown number translate the sentence into an equation