Eric played piano and guitar for a total of 8 hours this week. He practiced the piano 3/4 of that time. How many hours did Eric practice the piano this week?

D - 10 - 2d + 7 = 8 + d - 10 - 3d

How to work out 2/3 of 8

Miguel is painting a cabinet shaped like a rectangular prism. He is going to paint all of the exterior sides except the top and the bottom. The cabinet is 6 feet tall, 4 feet wide, and 2 feet deep.

Mia borrowed 5,000 from her grandparents to pay college expenses. She pays them $125 each month, and simple interest at an annual rate of 5% on the remaining balance of the loan at the end of each year. For how many years will she pay interest?

In how many ways can the letters in the word balloon be arranged? 210 1,260 2,520 5,040

An item is regularly priced at $40. Lena bought it at a discount of 60% off the regular price. How much did Lena pay?

Adam rolls a 6-sided number cube. What is the probability that he gets a number less than 3? 1/6 2/3 5/6 1/3

How to do equations with the distributive property

The length of one side of a square city block is 462 meters. what is the perimeter of the block

3 + (5 + 7) Use the commutative property of operations to reverse the numbers in the expression. Use the associative property of operations to change the grouping after reversing the numbers in the expression. Evaluate the expression.