4/7 of the students in a classroom are girls. If there are nine boys in the class, how many total students are there?

14

28

21

12

Let theta be an angle in quadrant IV such that sin theta = - 5/13 Find the exact values of sec theta and tan theta

What is the greatest common factor of these number 12x^3, 16x^2, 20x?

Which is a counterexample for the following statement? The sum of two numbers is smaller than the product of the same numbers. -2 and - 8 -1 and - 3 1 and 3 2 and 8

Draw a figure with the given perimeter 18 units

Study results indicate that the mean length of time people spend on a bus in a city is between 21.2 min and 24.5 min What is the study margin of the error?

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.