Ken paid $12 for two magazines. the cost of each magazines with a multiple of 3. what is the possible prices of the magazines

Pls will give brainliest and all p.s u can zoom in if u cant see plss

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?

The holiday party will cost $160 if 8 people attend.if there are 40 people who attend the party, how much will the holiday party cost