What is three times a number decreased by 21 is 57 in numberic form

What is the GCF of 8 and 12 and 16

What error did zacharias make?

Johnny deposited $1230 in a savings account at 2.25 percent interest. How much interest will the account earn in 10 years? $212.50 $291.25 $276.75 $202.25 Will got an insurance check of $4500 after a car accident.

2m to the power of 2 times 2m to the power of 3

Write your answers in scientific notation (5.3*109) + (2.8*109) =

Write an equation in x to represent each statement below. Do not solve the equation. 1. when 4 is added to a certain number the result is the same as halving the number and adding 10. 2.

3. What is the solu3. What is the solution of system? Y = 5x + 4 Y = 5x - 3 A) No solutions B) (0,4) C) Infinitely many solutions D) (0,-3) tion of system? Y = 5x + 4 Y = 5x - 3 A) No solutions B) (0,4) C) Infinitely many solutions D) (0,-3)

True or false, when n is an negative integer, n-n=0

A cars velocity changes from 0 m/s to 30 m/s in 10 seconds

X²+-x+-4y+-2 (x²+-x+-y)