It takes Amanda x minutes to do her math homework. It takes Serena fifteen minutes longer than it does for Amanda. What is an expression for how long it takes Serena to do her homework?

The school serves tacos every 6th day and cheeseburgers every 8th day. If tacos and cheeseburgers are both on today's menu, how many days will it be before they are both on the menu again?

Solve for x. 7 (x + 2) = 6 (x + 5)

Jamal hiked on two trails. That first trail was 5 1/3 miles long, and the second trail was 1 3/4 times as long as the first trail. How many miles did jamal hike?

10[4 times 10 divided by9 (6 two to the second power-4 to the second power) + 1}

Lily likes to collect records. last year she had 10 records in her collection. now she has 15 records. what is the percent increase of her collection?

How How do you solve K+20=9k-4

If the volume of a cube-shaped box is 729 cubic inches, which equation would you use to determine how many 1-inch cubes could fit along one side?

Can - 6 1/30 be simplifyed

Comparing Account Balances In Exercise, $2000 is deposited in an account. Decide which account, (a) or (b), will have the greater balance after 10 years. (a) 6 1/2%, Compounded monthly (b) 6 1/4%, Compounded continuously

A popular pizza place has 15 toppings that can be placed on a pizza. You want to order a pizza made from 4 different toppings. How many possible combos?