Which expression is equivalent to 1/3 p + 15? (4 points) select one: a. 1/3(p + 45) b. 1/3(p + 5) c. 3(p + 45) d. 3(p + 5)

An isosceles trapezoid with a perimeter of 42 inches. each of the congruent non parallel sides is 5 inches long, and the trapezoid is 3 inches tall. how long are the two parallel sides? a. 10 in, 22 in b. 16 in, 16 in c. 10 in, 16 in d. 12 in, 20 in