What is (x^3) ^-5 simplified

Haley bought 3 notebooks that each cost the same amount and 1 backpack that cost $36. The items she bought cost a total of $48 before tax was added. What was the cost of each notebook

How do I find a perimeter

If there are 21 values in a data set in order from smallest to largest, what is the first quartile of the data set

0.64 to the nearest whole number

In a function, values of x are called

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.