Solve the proportion x/12.6=45/63

A group of children and their parents went to an amusement park. There were a total of 40 people in the group. The tickets cost $22 for each adult and $18 for each child. They paid a total of $820 for the tickets.

Choose the best definition for the following phrase: combining like terms A letter that holds the place for some unknown value in mathematics A process where you must look for terms that have identical variable parts and then combine their

What is 1,430,000,000 in scientific notation?

Enrico is filling his pool. The pool has 3000 gallons of water in it. The water hose that enrico uses puts 500 gallons per hour into the pool. Write an equation for the number of gallons y water in the pool after x hours.

What is the difference of the following polynomials? (6r3 - 2x2 + 4) - (2x + 4x² - 5) A) 0 4x² - 2x² - 1 B) 8x3 + 6x2 - 1 C) 4x3 - 2x2 + 1 D) 4x3 - 6x2 + 9

Michelle has some stamps, her sister has half as many stamps as she does. they have 1080 stamps in all. How many stamps does Michelle have?

791,030 written in standard form

Your car can drive 28 miles on 1 gallon of gas. How many miles can your car go with a full tank of 12 gallons?

Donald has a coin collection. He has 36 dimes, 72 quarters, and 18 nickels. He wants to arrange them into equal groups with only one type of coin in each group. How many can he put in each group? a. 1 b. 2 c. 3 d. 4 E. 9 F. 12

Three piles of 7 beans each are to be made from 10 red, 5 yellow, and 6 green beans. If all of the beans must be used and each stack must contain at least one bean of each color, then what is the maximum number of red beans that can be put in one of