The variable z is directly proportional to x, and inversely proportional to y. When x is 11 and y is 14, z has the value 7.8571428571429. What is the value of z when x = 15, and y = 22

Keith won a cash prize in an art competition. He gave his mother 2/5 of the money he won. Of the remainder, 1/4was given to his sister and 2/3 was given to his brother. He has $15 left. How much was Keith's cash prize?

Determine whether the function is bounded below, above or on its domain for y=32.

How to write a expression for: Jasmin has increased her $45 by m dollars and then spends a third of the entire amount.

On Tuesday, a local hamburger shop sold a combined total of 544 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the number of hamburgers sold. How many hamburgers were sold on Tuesday?

32gal/min equals how many qt/h

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.