The theatre at the local community college is pre-selling tickets for $36, which is a 20% savings. If you wait and buy a ticket at the door, how much will it cost? Round your answer to the nearest cent.

Can someone check if i did this correct. it’s number 4 if you’re wondering.

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?

In δabc, m∠acb = 90°, cd ⊥ ab and m∠acd = 45°. find: a find cd, if bc = 3 in