anyone very good in maths and want to be my friend? Don't answer for points if you're not I will report you.​

Liam's parents are driving three times as fast as liam is biking, but they left later than he did. if his parents caught up with him two hours after he left, how much later than liam did they leave?

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums. what is the probability that the applicant who gets the job plays drums or guitar?