Find the solution to the system of equations. you can use the interactive graph below to find the solution.
{21x + 7y = 42
{-5x + 5y = 10
x =
y =

Aformual for 8 bottles of window cleaner calls for 6 cups of rubbing to customers alcohol 2 1/4 gallons of water and 1 1/2 cups of ammonia alcohol would the forula call if a factory made 1,280 bottles for stores to sell to customers

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

What number is 7 units left of -15?