A factory produces 500 batteries every hour, but 1% of the batteries are defective and are thrown away. The factory receives an order to produce 15,000 batteries. Which represents an equation for the situation and a solution for the number of hours needed to produce 15,000 batteries?

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

Write the rational number in lowest terms 99/-15

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.