Given right triangle RST, what is the value of sin(S)? Five-thirteenths Five-twelfths Twelve-thirteenths Thirteen-twelfths

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3

Mrs. blake's bill at a restaurant is $42.75. she wants to leave the waiter an 18% tip. how much will she pay in all, including the tip?