When is the the substitution method a better method than graphing for sloving a system of linear equations

Cynthia bought spools of black, silver, and white ribbon which cost $4 each for a party. She also spent a total of $79 on party favors.

A company employee has to print 3145 copies of a 1-page document to be mailed to clients. The company's printer prints 85 pages per minute. The function f (x) = - 85x+3145 represents the number of unprinted pages x minutes after the printing begins.

How do you find which function has a greater rate of change?

How do I get the expression of something that I don't know how to solve

What is the answer to: jason has 4 tiles. each tile has a number printed oon it. the numbers are 2,3,6, and 8, a decimal number is formed using the titles and the clues. be a math detective and find the number.?

What is the Hcf of 10 and 15

The name of the triangle whose angles are all obtuse.

Kendall has 37 inches of yarn to create an outline of the Big Dipper for her science project. Which equation could be used to find out how many inches of yarn will be left when she has finished the project?

6 divided by 3/4 I need to show work

Kayla paints a bookcase she uses 1 5/6 cups of paint on the outside of the bookcase and 3/8 cup of paint on the inside. How many cups of paint did Jayla use all together