What is 15 + 3x - 9 + 8x

3 - (-18) 1.-21 2.-15 3.15 4.21

Suppose that circles R and S have a central angle measuring 60°. Additionally, the length of the intercepted arc for circle R is 10 3 π meters and for circle S is 16 3 π meters.

If I had two chocolate cakes and you asked for two how many would I have left?

A circle has a circumference of 12. t has an arc of length 8/5. What is the central angle of the arc, in degrees?

5x - y = - 38 3x + 4y = 0 (4,3) (-4,3) (4,-3) (-4,-3)

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.