Roberto works 5 days for 8 hours each day and earns 11.25 per hour. The table below shows the amount that he earns for one day of work and for 4 days of work. How much will Roberto earn for 3 days of work?

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.

Divide the following fractions 3/4 ÷ 2/3 1/2 8/9 9/8 2

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?