How to solve 13 - 2 1/2

Aladdin has 15 gold coins in his magic bag. The Genie tells him that for every 100 gold coins he has in his magic bag, he will get 5 extra gold coins every year. How many years later will Aladdin have 30 gold coins in his bag?

Put the values in order from least to greatest: |-3|, |2.5|, |-4|, |3.3|

What is the solution to the equation 1/h-5+2/h+5=16/h^2-25?

The sum of two positive integers is 50 and their difference is 12. What is the value of the positive difference of the squares of the integers?

The table below displays the purchases that Graphic DesignWorks made from a manufacturer this year for hats.

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.