13x - 7 = 136

11

15

8

9

A school has 520 students. dan surveys a random sample of 50 students and finds that 32 have pet cats. how many students are likely to have pet cats?

Twice a number is decreased by 7, and this quantity is multiplied by 3. the result is 9 less than 10 times the number. What is the number?

What fraction is between 2/3 and 1 1/3

Which measurement is a possible side length for a triangle with two sides measuring 9 cm and 4 cm? 5 cm 6 cm 3 cm 4 cm

Gasoline landed to walk her dog for 3/4 of a mile after it started to rain she decided to work only one half of that distance what fraction of a mile did Kathleen walk her dog

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.