Which statement is true? a. two angles can be complementary and equal. b. two angles cannot be equal if they are complementary. c. an angle can be complementary only if it is 90°. d. only three angles can be supplementary.

Jack has a rectangular piece of land, the area of which is represented by a1 = 9.5l. his brother has a different rectangular piece of land, the area of which is represented by a2 = l(14 − l). let a represent the area in square meters and l represent the length in meters of the pieces of land. the two equations plotted on a graph meet at a point as shown in the image