Express 0.31 as a percentage

Ten students in the art class used watercolors. This represents 40% of the students who used watercolors for painting. how many students are in the class?

4. Solve this equation: Y/g + 5 = 0. O A. y = 5 O B. y=-5 O C. y=-45 O D. y = 45

Jason is 22 years older than his sister joan. in 9 years, he will be twice as old as joan. how old is each of them now?

One angle of a triangle measures 52 more than the smallest, while a third angle is twice the smallest. find the measure of each angle

Lamar made a garden in a shape of a rectangle with an area of 36 square feet. the shorter side of the garden measures 4 feet. explain how you can find the perimeter of the garden.

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.