An inlet pipe can fill an empty swimming pool in 7 hours, and another inlet pipe can fill a pool in 2 hours. how long will it take both pipes to fill the pool?

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.

Select the quadratic that has root x = 8 and x = -5