PLEASE HELP QUICK!! Steve's bill at a restaurant for lunch was $15. He had exceptional service and wanted to leave a 20% tip for his waiter. What is the total cost of his lunch?
A$3
B$15
C$18
D $5

Charlie is a car salesman he earns $800 plus a 9% commission on all of her sales for the week if charlie receive the payment for $1960 this week how much where is total sales

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11