(40 points) which expression is equivalent to 3^2 ⋅ 3^−5? (not giving answer choices for the best result)

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?