Which table shows a proportional relationship between x and y? a. x y 2 4 3 6 4 9 b. x y 3 4 9 16 15 20 c. x y 4 12 5 15 6 18 d. x y 1 4 2 8 3 15

C.

Step-by-step explanation:

The relationship is proportion if y/x is constant.

So it is C because 12/4 = 15/5 = 18/6 = 3.

step-by-step explanation:

false

step-by-step explanation:

false.   two legs of the trapezoid would be congruent, but the other two would not.   were all the legs congruent, then we'd have a square; were the 2 shorter sides congruent and the 2 longer sides also congruent, we'd have a rectangle.