PLEASE HELP I ONLY HAVE 27 MINS LEFT!

A: 520 cm^2
B: 1400cm^2
C: 1520cm^2
D: 1600cm^2

List the 10 possible samples (without replacement) of size 3 3 that can be obtained from the population of five officials.

You are on a cycling trip around europe with friends. you check the weather forecast for the first week. these are the temperatures for the week. sun mon tues wed thurs fri sat 16°c 20°c 24°c 28°c 28°c 23°c 15°c what is the mean temperature forecast for the week?

(x-5)1/2+5=2 what is possible solution of this equation