X=-12-6y

-4x+5y=-39

slove by the system of substitution

Evaluate the following numerical expressions (6 + 3) / (4-5) =

A basket contains 1 blueberry muffin, 1 apple muffin, 1 bran muffin, and 1 carrot muffin. you randomly choose 3 muffins. what is the probability that you choose apple, bran, and carrot muffins? Write in the form of fraction in simplest form.

A father is 3 times older than his son, or 28 years older. How old is the son?

What are supplementary angles?

A certain club has $50$ people, and $4$ members are running for president. Each club member votes for one of the $4$ candidates. How many different possible vote totals are there?

Add 34 and 6 and then multiply by 3

Whats the mean of 12 2 8 6 57

Using the rate of $8 for every 2 pounds of rice, how much would a 1/2 pound of rice cost

Charlie can run at a speed of 3 yards per second. About how many miles per hour does Charlie run

Use technology to solve for x. 2^x-8=3x-9 What are the solutions?