PLEASE HELP ME I WILL GIVE OUT THE BRAIN THING AND EXTRA POINTS

Each row (A, B, C, D) represents a fraction. What fraction do you get when you subtract row D from row A?
A) 1/2
B) 1/3
C) 1/4
D) 1/6

Find the given elements if matrix d:

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)