At a price of $70 per bathing suit, what is the quantity demanded of bathing suits? 10 bathing suits b. At a price of $60 per bathing suit, what is the quantity demanded of bathing suits? 20 bathing suits c. Using the midpoint formula, a decrease in price from $70 to $60 per bathing suit represents a(n) ______ decrease in price. multiple choice 1 40% 28.57% 15.38% 22.22% d. Using the midpoint formula, a decrease in price from $70 to $60 per bathing suit causes a(n) ______ increase in quantity demanded. multiple choice 2 18.18% 28.57% 66.67% 22.22% e. Using the midpoint formula, at a price of $70 the price elasticity of demand for bathing suits is multiple choice 3 -1.29. -0.45. -4.33. -0.78.