The profit when selling ‘x’ pairs of shoes is defined by the function p(x)=-4x^2+32x-39 How many pairs of shoes should be sold in order to maximize the profit? A: 6 pairs
B:7 pairs
C:4 pairs
D: 5 pairs

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin