Recall that for 
, we have
Replace 
with 
and we get
Lastly, multiply this by 
, so that
Answer:
y = 2x + 4
Step-by-step explanation:
So, the cab company charges a flat fee of $4 per cab ride, meaning 4 has no variables in the equation. Now, x is the distance, and the cab company charges $2 per mile driven. Per mile driven is a distance unit, so the x goes with the 2. From that, you can get that the cost is equal to 4 dollars plus 2x (2 times the distance in miles). This is y = 2x+4.
His co-payment for his physician visits would be:
10 x 18 = $180.
His co-payment for his physical therapy would be:
10 x 20% x 150= $300.
You then have to add both co-payments which give you $480.
The decrease in the value of the toy is $9.25 if you subtract $ 0.75 from $10.00 then you get $9.25 so it's $9.25 cheaper
12!!!! Hope this helped and good encouragement
