Question

I am going to attach a picture of my question as you can see in the picture that the answer has already been answered well my teacher told me to type out how she got the answer.

Answer 1

QR = 12 + x - 2

Now find x, using

QO •OR = NO• OP

then

12 • (x-2) = 3• (3x -1 )

Solve parenthesis using a(b+c ) = ab + ac

12x - 24 = 9x - 3

12x - 9x = 24 - 3

So then

x = (24-3)/(12-9)

. = 21/3

. = 7

Then now use x, to find QR

QR = 12 + x - 2

. = 12 + 7 - 2

. = 17

Then ANSWER IS

OPTION A) 17