Eva swims 1/2 of a mile in 1/4 of an hour. How far will she swim in 1 hour?

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

Acoin is tossed 4 times which of the following represents the probability of the coin landing on heads all 4 times

Shane and abha earned a team badge that required their team to collect no less than 2000 cans for recycling. abha collected 178 more cans than shane did. write an inequality to determine the number of cans, s, that shane could have collected.