Which expression is equivalent to r^9 over r^3

What is this answer (-11) (-11) (-11) =

The experimental probability that Josie dad gets home from work between 5 p. m. and 6 p. m. is equal to 5/8. About what percent of the time will Josie dad get home from work between 5 p. m. and 6 p. m.

what is 24/100 simplify to

Larry produced 40 pressed inner fenders out of sheet metal per hour and got paid $24 per hour ($0.60 x 40) but michelle only produced 30 inner fenders per hour and got paid $18.00 ($0.60 x 30).

Susie has a part-time job at the video store. She makes between $53.79 and $59.26 a day. Which is a reasonable estimate of the amount of money that Susie makes for working 7 days? A. $357 B. $422 C. 396 D. 428

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.