I don't either it is quite hard to be fair
Answer:
the diagonal of TV equal to 20
Answer:
The signup fee is $17
Step-by-step explanation:
we know that
The equation in point slope form is equal to

where
m is the slope or unit rate of the linear equation
(x1,y1) is a ordered pair of the line
Let
x -----> the number of months
y -----> the total cost of a gym membership
In this problem we have
The slope of unit rate is equal to

The ordered pair is

substitute
----> equation in point slope form
Convert to slope intercept form
---> equation in slope intercept form
The y-intercept is the signup fee (value of y when the value of x is equal to zero)
therefore
The signup fee is $17