Ratio of the radii = sqrt16 / sqrt81 = 4/9
so radius of circle Q is found by solving 4/9 = 8/x where x = radius of Q
x = 2*9 = 18
radius of circle Q = 18.
Answer =x
Explaination: anything equals x
Answer:

............................
1-e
2-h
3-f
4- c
5-d
6-i
7-b
8-a
9-l
10-k
11-j
12-g
4x = -36 Subtract 10 from both sides
x = -9 Divide by 4 on both sides
Answer:
11x + 14
Step-by-step explanation: