An exterior angle of a regular polygon measures 30 degrees. what is the measure of an interior angle?
30
60
120
150

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.

Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red