Answer:
$68.40
Step-by-step explanation:
15 percent of 59.50 is 8.925
8.925 plus 59.50 is 68.425
68.425 rounds to 68.40
Answer:
Step-by-step explanation:

Since order is not important we are only looking for unique combinations of 3, so we need to use the "n choose k" formula.
n!/(k!(n-k)!), n=number of elements to choose from, k is the number of choices made....in this case:
30!/(4!(30-4)!)
30!/(4!*26!)
27405