How to answer that 1st performance task on math 8?​

Five friends found a dollar on the ground and decided they each should get 1/5 of it. what amount of money will each friend get? $0.05 $0.20 $0.30 $0.80

The triangle rst, rs = 65 and st = 60. which equation could be used to find the value of angle s?

Find the value of x. also give me an explanation so i can complete it to other questions as well, : )