2x^2+8y=121.5 if x^2-8y^2=121.5 what is x?

A medium apple has 72 calories. This is two thirds the calories in a medium banana. How many calories are in the banana?

0.123 repeating as a fraction

Simplify 3∛81 - 2∛54

A cow walks 1/2 mile in 1/4 of an hour. How many miles will the cow walk in 1 hour?

You put $16,000 in a saving sccount with 3% interest. How much money will be in your savings account after the 6th month? How much money did you make in in interest?

What is 3/5 in two equivalent forms

A group of 120 students were asked how old they were when they lost their first tooth. 50% said they were 7 years old. How many students said they were 7 years old when they lost their first tooth? Explain.

In the Income section shown below from the 1040EZ form, a married couple filing their federal income tax return jointly entered $0 on line 6 for their taxable income.

Every used to make $22 an hour, but got a 10% raise. How much more will he make in a 40 hour work week with the raise?

Find the output, y, when imput, x, is - 1