If (a,-7) is a solution to the equation 8a+3b=3, what is a?

Dee used 2 1/3 cups of sugar for a cake recipe. if the amount of sugar the container holds is 3 times the amount she used, does the container hold more than, less than, or equal to 3 cups of sugar? explain.

Atransformation t : (x, y) (x-5,y +3) the image of a(2,-1) is

Ebert used to make $22 an hour, but got a 10% raise. how much more will he make in a 40 hour work week with raise?