What must the length of segment ad be for the quadrilateral to be a parallelogram if ad=3x+7 and cb=5x-9

This doesn’t make sense to me it’s supposed to be lcm ( least common multiple )

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

Asequence has its first term equal to 4, and each term of the sequence is obtained by adding 2 to the previous term. if f(n) represents the nth term of the sequence, which of the following recursive functions best defines this sequence? (1 point) f(1) = 2 and f(n) = f(n − 1) + 4; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2n; n > 1 f(1) = 2 and f(n) = f(n − 1) + 4n; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2; n > 1 i will award !