Amy usually swims 20 laps in 30 minutes. What is her rate in Laos per minute

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Factor the trinomial below. 12x^2 - 32x - 12 a. 4(3x+3)(x-1) b. 4(3x+1)(x-3) c. 4(3x+6)(x-2) d. 4(3x+2)(x-6)

Anumber cube is rolled two times in a row. find the probability it will land on 2 on the first roll and a number greater then 4 on the second roll