Ok so for number 5, AB is proportional to BC just like PQ is proportional to QR. AB = 9, BC = 15, PQ = 3, and QR = x. 9/15 = 3/x. Cross Multiply: This gives you - 9x = 45. Divide both sides by 9, and you get x = 5. QR = 5
The answer is A so yeaaaaaa
<span>the answer is : 9.77777777778</span>
I would pick the third choice because in order to find x, you must multipy your 4.
