You need to drain your swimming pool. The pool has 1500 gallons of water. It drains at a rate of 150 gallons per hour. a.) Write an equation to model the situation.
b.) how many gallons will be left in the pool after it has drained for 6 hours?
c.) how many hours has the pool drained if it has 150 gallons left.

The table above shows approximate conversions from gallons to liters. what is the value of x?

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )