Help! My math teacher is evil!!! If you could help me with 28 to 33 it will be very much appreciated!! :D

I will respond later with the rest of the other answers, but #33 is $1591.20.
To get the answer that I stated, move 2% to 0.02. Then add a 1 to 0.02 to get 1.02 so you can multiply it to the $312. After you multiply the $312 to 1.02, you get 318.24, or $318.24. Then, multiply the $318.24 by 5. Then you get $1591.20.