Solve 13+x/2=3x for x

Find the perimeter of a triangle with sides 12inches, 9inches, and 15inches

Which term best describes the expression 12 + 2a - 8

What part of an hour elapsed between 6:51 pm and 7:27 pm?

Ling drove at an average speed of 78 kilometers per hour for 45 minutes. She then increased her average speed by 6 kilometers per hour and drove for 20 minutes before reaching home. Fine the total distance Ling traveled?

Marco is draining his two aquariums. The tanks are the same size. One tank has 7 in. of water in it, and it is being drained at a rate of 1 in./min. The other tank has 5 in. of water in it. It is being drained at a rate of 0.5 in./min.

On Friday a local hamburger shop sold a combined total of 564 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the number of hamburgers sold. How many hamburgers were sold?

Write 0.126126126 ... as a fraction

Lori has 60% of the book to read. If she has read 120 pages how many pages does she still have to read

Meghan earns $ 20.00 by walking dogs she uses all of her earnings to buy a shirt for $12.85 and some stickers for $ 0.65 each how many stickers does she buy?

Multiply and simplify: 10x (6x^2 + 7x + 9) Question 4 options: 60x^3 + 70x^2 + 90x 60x^2 + 70x + 90 6x^2 + 17x + 9 60x^3 + 160x