Which property justifies rewriting

3x-5x as (3-5) x

How many lines of symmetry can be drawn on a base ball field

The model below represents 4x + (-4) = - 2x + 8

A drawer contains 24 pons and forks. There are 3 times as many spoons as forks. a. Write a system of linear equations that represents this situation. b. How many spoons are in the drawer? c. How many forks are in the drawer?

Write 5 X 5 X 5 using exponents my choices are 5^5, 5^2, 4^5, 5^4

Mariah played two games of checkers with her brother. The first game took 12 minutes and the second game took 18 minutes. They put the game away at 7:55. What time did they start playing checkers?

For which of these ARMs will the interest rate stay fixed for 4 years and then be adjusted every year after that?

Annie opened a savings account and deposited $10. If the balance in her account doubles each month, what is the account balance after 4 months?

The giraffe is 15 feet tall. she is 2 1/2 times as tall as the elephant. how tall is the elephant?

What is the sum or difference? 6x7 + 8x7

What is the vertex of the function f (x) = x^2 + 16x?