Kyoko has a deck of 30 cards, numbered 1 through 30. She draws a card and then returns it to the deck. She does this 8 times. What is the probability that she doesn't draw the same card more than once?

How do i do this activity, is appreciated

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

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?