The manager at the local auto shop has found that the probability that a car brought into the shop requires an oil change is 0.67, the probability that a car brought into the shop requires brake repair is 0.33, and the probability that a car requires both an oil change and brake repair is 0.18. For a car brought into the shop, determine the probability that the car will require an oil change or brake repair.

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w

what chart am i supposed to follow?

your answer is #3 , 8 - 3 square root of 11

answer is  

c.

56

hope you get this right