. A rectangle has a perimeter of 640 cm. TWhat dimensions maximize the area of the rectangle? a. 120 cm, 200 cm c. 100 cm, 220 cm 1:. 130 cm, 140 cm r]. 160 cm, 160 cm . For which values of 5: does x} =x3 - 3x1 + 3 have local extrema (maxfmin)? a. U, 2 c. 2.5, l.34, 0.851 b. 0 cl. 2 . If the price function for selling at movie tickets can be written as p(x) = 800 5x, determine the selling price p that will maximize the theater's revenue in dollars. {RUE} = x - p(x)) a. $16 C. $8 In. $32 If]. $6