If i buys 15 cars at 20 each, how much money did i spent

x = 3y - 6 2x - 4y = 8 Solve the system of equations using substitution. A) (-12,-2) B) (15,7) C) (21,9) D) (24,10)

Describe the steps you can use to find an average of fractional amounts.

A rectangular prism with a length of 3cm, width of 4cm, and height of 5cm is packed with cubes whose side length is 1/2cm. how many 1/2cm cubes can fit inside the rectangular prism?

A cereal box contains 8 1/4 cups of cereal. The nutritional information on the box defines a serving as 3/4 cups. How many servings does this box contain?

Subtract [4-4-2] - [4 - 3 5]

Which is the best buy, a 6-pack of soda that cost $2.70 or a soda that cost 0.50 each

What does 11111 times 3344?

Find the least number of cables required to connect eight computers to four printers to guarantee that for every choice of four of the eight computers, these four computers can directly access four different printers. Justify your answer.

A number m is at least - 3

Explain the concept of regression to the mean between generations.