A local frozen yogurt shop sell its yogurt and topping for $0.45 per ounce. If Felix bought 8.4 ounces, how much did it cost?

What number produces an irrational number when multiplied by -1.25

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

If the simple annual interest rate on a loan is 6, what is the interest rate in percentage per month?