Answer:
y = 4x - 1
Step-by-step explanation:
Assuming you require the equation of the line.
The equation of a line in slope- intercept form
y = mx + c ( m is the slope and c the y- intercept )
Here m = 4 and c = - 1, thus
y = 4x - 1 ← equation of line
D
Subtract 60 from 80 to get 20, and divide 20 by 80 to get 1/4, which can be converted to 25%.
Combine like terms:
5a-7a=-2a
3b+4b=7b
-2a+7b
Hope this helps!!
i think its 0.0225