Shorts are on sale for 10% off. if kate buys 10 pairs of shorts at s dollars apiece, which expression is not equivalent to the situation stated?

Find and simplify the difference of the golden ratio and its multiplicative inverse

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

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?