Set (8x+1) equal to (y+10)
(8x+1)=(y+10)
The answer is 120 seconds.
Why?
180 divided by 4.5 is 40 seconds
200 divided by 2.5 is 80 seconds
Then add the seconds.
But I don’t understand how you walk so many meters in 180 seconds
I hope this helped, have a nice day
The sales tax is 3.49 I think