Solve 20x+5y=15 for y

One of the most famous paintings in the world is the mona lisa by leonardo da vinci. it is about 31 inches tall and 21 incjes wide what is the perimeter of painting

Solve only for x: 3 (x-y) = 8 (x+z)

Sally and Karl work at different jobs. Sally earns $7 per hour and Karl earns $5 per hour. They each earn the same amount per week but Karl works 2 more hours. How many hours a week does Karl work?

Which of the following expressions is true? A. 43 • 45 < 412 B. 52 • 53 > 55 C. 32 • 34 = 32 D. 52 • 54 = 58 I think that it's C, but I want to make sure.

If i make $8.75 per hour, what will my hourly wage be for 14 hours?

Which system of equations has the same solution as the system below? 3x + 3y = 8 2x - y = 5

Which of the following activities are examples of data gathering? Check all that apply. A. Finding the mean weight of cancer patients in a study B. Graphing the heights of trees C. Asking voters whom they will vote for D.

For the numerator to have (x-8) as a factor, it's constant term must be what

How do I find the area of a square with no height?

Angie wants to ride the Ferris wheel the roller coaster and the log ride the Ferris wheel cost six tickets the roller coaster cost 3 tickets in the log ride cost 2 tickets and she has six tickets how many more tickets to Angie buy