Answer:
60ft
Step-by-step explanation:
h x 20 = 120
h=120/20
h=60
So,
The slope-intercept form is as follows:
y = mx + b
"m" is the slope, and "b" is the y-intercept. The y-intercept for this equation is (0,b).
Our equation is

That means that

is the slope, and -3 is the y-intercept.
Answer:
I think answer is 87<180 or maybe 87<12*15
If you would like to know what is y when x = 42, you can calculate this using the following steps:
x = 8 ... y = 20
x = 42 ... y = ?
8 * y = 20 * 42 /8
y = 20 * 42 / 8
y = 105
The correct result would be: y = 105 when x = 42.