What is the factor tree for 16 and 20

Which elements in the set below are integers? 12, –3⁄4,√ 25 , –7, √ 5 , 14⁄7, 9 a. 12, √ 25 , –7, 9 b. 12, √ 25 , –7, 14⁄7, 9 c. –3⁄4, 25 , √ 5 ,14⁄7 d. 12, –7, 9

The parabola opens: y=√x-4 (principal square root) up down right left

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.