A taxi costs 3 dollars plus an additional 2 dollars per mile traveled \. You spent exactly $20 on taxi which includes the one dollar tip you left. How many miles did you travel?

8 miles

Step-by-step explanation:

The equation for this relationship is:

3+2x=y (x is no. of miles and y is the total cost without tips of course)

The total cost without the tip is 20-1=19.

Plug 19 in for y:

3+2x=19

2x=16

x=8

Hope this helps!

D or 160 degrees

Step-by-step explanation:

They are basically asking 20 + x = 180.

We can subtract 20 from both sides to see that:

x = 160 or D is our answer.

Check:

20 + 160 = 180 degrees so we are correct.