(1 - y)12 represents the price of the set of tennis balls after a coupon was applied.
If one U.S. dollar is as much as 1.68 Swiss francs, then 79,00 U.S. dollars will be as much as 79,00 * 1,68, which is 132,72 Swiss francs.
I hope it will help :)
The probabitily is if they get selected as a team of 7 aswell if they're playing a game of some sort.
In total there are 534 spaces, but 476 are occupied.
Occupied spots cannot be parked in.
The answer is 534 - 476, which equals 58 available spots.
