What is r - 9 for r = 20

The weight of a Synetic ball varies directly with the cube of its radius a ball with a radius of 2 inches weighs 3.60 pounds find the weight of a ball of the same material with a 3 inch radius

What one is it what one of the four is the answer

What is 18-3m where m equals - 1

What percent of 185 is 35

Find the value of y in rectangle QRST. 11y+9 19y+28 20y

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.