( Math coordinates ) how do I do rotations?

Assume cd | ab are parallel. find m2. a) x= 50° (b) x = 70° c) x = 30° d) x = 60

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years