6x + 5y = 8xy

8x + 3y = 7xy

What is the equivalent fraction to 84/120

There are 20 people who work in a office together. Five of these people are selected to go to a conference. How many selections are possible? A. 100 B. 2400 C. 15,504 D. 1,860,480

The insurance company pays the full cost of 3,900 prescriptions claims out of 4,500 prescriptions claims submitted. What is the rate of the claims paid expressed as a percent?

What is the equation for an explicit formula

A company charges $0.10 for each letter engraved. Bobby plans to spend no more than $5.00 on the engraving on a jewelry box. Write and solve an inequality to find the maximum number of letters he can have engraved.

Eric is getting his mountain climbing cerificate. There are 63 days that Eric climbs for 2 hours, there are 97 days that he climbs for 3 hours. How many more hours does Eric need to climb until he earns a certificate for climbing 500 hours?

Angles that are congruent have vertical lines

Spencer works 8 1/5 hours in day 1 and 7 5/6 hours in day 2. How many hours does he work in both days?

Find three solutions of the equation y = 9x - 4.

If you have an 18% solution, how many milligrams is in each milliliter of solution? A. 18 mg B. 180 mg C. 1.8 mg D. 1800 mg