Answer:
d) 192
Step-by-step explanation:
Your calculator can do this for you.
Or, you can simplify to

20/x+11=10/x+3
20(x+3)=10(x+11)
20x + 60 = 10x + 110
10x = 50
x = 5
Answer:
slope = 
Step-by-step explanation:
Slope formula: 
Given points:
(1, 2) = (x1, y1)
(9, 6) = (x2, y2)
To find the slope of a line, input the values of two points into the slope formula:

Solve:
6 - 2 = 4
9 - 1 = 8
Simplify:

The slope is
.