Danny's 7 friends contributed an equal amount of money to buy him a birthday present. The present cost $84. How much money did each friend contribute?

4 (1 + 6q) + 6q simplify the expression involving like terms and the distributive property

21 years ago, I was half the age I am now. How old am I?

Write the x-intercept of the graph of - 6x + y = 8.

How many moles are in 600. g of calcium

Simplify. Consider all cases. |14 - (x-6) |

A door is 6 feet 6 inches high and 36 inches wide. Can a thin piece of plywood 7 feet wide be carried through the door?

Simplify: 3[2 (6 + 4) - 8]+8:2

Aiden measures a book with paper strips. It is actually 10 paper strips long, but he gets an answer of 8. What is his mistake?

Mia's new puppy weighed 3 1/5 pounds at 4 weeks old. At 16 weeks old, the puppy weighed 9 1/7 pounds. By what factor did the puppy's weight increase during that period? Write your answer as a mixed number.

What are system of inequalitues