1. Find the difference of the quotient of 71 and 2.5 and the product of 3.2 and 2.4. 2. A local airline sells 65 seats for $324 each and 81 seats for $211 each. If the break-even point for the airline...

1. Find the difference of the quotient of 71 and 2.5 and the product of 3.2 and 2.4.

2. A local airline sells 65 seats for $324 each and 81 seats for $211 each. If the break-even point for the airline is $256 a seat, express the profit or loss for the airline for this flight as a signed number.

3. A formula for relating degrees Fahrenheit (F) and degrees Celsius (C) is 9C = 5F  160. Find the degrees Fahrenheit that is equal to 22°C.

4. Using the formula in Exercise 69, find the degrees Fahrenheit that is equal to 8°C.