VECTORS QUESTION: R, S, Q and P are the midpoints of OC, CB, BA and OA respectively. OR = a, CS = b and OP = c

Show that RS is parallel to PQ. I will award brainliest. Please help!

Could someone with number 1 and 2

What is the unit rate of, 75% high fiber chimp food to 25% high protein chimp food.

Darren earned $663.26 in net pay for working 38 hours. he paid $118.51 in federal and state income taxes, and $64.75 in fica taxes. what was darren's hourly wage? question options: $17.45 $19.16 $20.57 $22.28