How do I simplify x^2*y^-3*y

Emil's backpack weights 6 3/8 pounds. He removes a book that weights 3/4 pounds. Then he removes a book that weights 1/2 pound. How much does Emil's backpack weight now?

Sal has a small bag of candy containing three green candies and two red candies. While waiting for the bus, he ate two candies out of the bag, one after the other, without looking. What is the probability that both candies were the same color? A.

Carmichael bought 9 tickets to attend a spaghetti supper fundraiser at her school. The equation 9x = 58.50 can be used to find x, the cost of each ticket in dollars. Which equation represents the cost of each ticket? * A: x = 58.50 + 9 B: x = 58.

Glenn has 450 stamps that are red blue green. 52% are red. He has 3/5 as many green as blue stamps. How many are blue and how many are green.

The estimated value of 37 times 99 is

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.