Which number makes the eqaution true? v^ + 10v + 16 = (v+8) (v + ?)
A. 2
B. 4
C. 6
D. 8

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

If the scale factor between two circles is 2x/5y what is the ratio of their areas?