9.31 x 10 to the 3rd power equals what times 10 to the 5th power

7/8 x + 20 = 3/4 x + 50

Gabe Amodeo, a nuclear physicist, needs 60liters of a 40%acid solution. He currently has a 30 % solution and a 60% solution. How many liters of each does he need to make the needed 60 liters of 40 % acid solution?

John bought a car for $65,000. If the value of the car depreciates by 8% each year, how much will the car be worth at the end of 2 years?

What is r - 9 for r = 20

Suppose the temperature outside is dropping 3 degrees each hour. How much will the temperature change in 8 hours? 0-240

The height of a ball thrown directly up with a velocity of 10 feet per second from a initial height of of 100 feet is given by the equation h (t) = - 16tsquared + 10t + 100, where t is the time in seconds and h is the ball's height, measured in feet.

Find the percent of each number 350% of 96

7/5 x 8 (do not reduce your answer)

Factor. x2 + 7x + 12 a. (x - 12) (x - 1) b. (x - 6) (x - 2) c. (x + 3) (x + 4) d. (x - 3) (x - 4)

24a^2b^2-18ab I need to factor this but am having trouble?