Heather paid $1,936.70 for a computer. If the price paid includes a 7% sales tax, which of the following functions can be used to determine the price of the computer after tax?

(Let x represent the cost of the computer and f(x) represent the total cost after tax.)

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?