Question 3 solve for d. 13d + 4 = 43 question 3 options: a3 b13 c39 dnone of the above question 4 solve for r. 4r - 6 = 30 question 4 options: a4 b8 c6 d9 question 5 solve for u. 126 = 6u question 5 options: a6 b21 c20 dnone of the above.

what i would say the best answer is a. 40.5

answer: the distance

step-by-step explanation:

to calculate the distance d of a line segment with endpoints (x1, y1) and (x2, y2) use the formula d (x2 x1)2 (y2 y1)2. to calculate the midpoint of a line segment with endpoints (x1, y1) and (x2, y2) use the formula