Over the past 7 days the temperature outside dropped 56°, find the average temperature each day

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why?

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?