Please help I found this confusing​

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.