91Ó°ÊÓ

Four hundred empty soft drink cans weigh 18.75 Ib. A recycling center pays \(\$ .75\) per pound for cans. Find the amount received for the 400 cans. Round to the nearest cent.

Fuel Consumption You travel 295 mi on 12.5 gal of gasoline. How many miles can you travel on 1 gal of gasoline?

One barrel of oil produces approximately 800 kilowatt-hours of electricity. Suppose you use 27 kilowatt-hours of electricity per month. How many barrels of oil will you use in one year?

Find the force exerted on a falling object that has a mass of 4.25 kg. Use the formula \(F=m a,\) where \(F\) is the force exerted by gravity on a falling object, \(m\) is the mass of the object, and \(a\) is the acceleration due to gravity. The acceleration due to gravity is \(9.80 \mathrm{m} / \mathrm{s}^{2}\) (meters per second squared). The force is measured in newtons.

Explain how baseball batting averages are determined.