Ariel can complete a paint job in 8 hours. James takes 12 hours to do the same job. If they work together, how long will the job take?

a. 10
b. 6
c. 20
d. 4.8

Hell . what are the solutions to `10x^2 - 38x - 8 = 0`? is this when i find the factors and use the numbers within the factors to determine the zeros? i hope that made sense lol

Find the zeros of each function. f(x) = 6x^2 - 7x - 20

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?