The C.o.P. is 36.
The equation for finding CoP is y=kx.
We know what k is. Since 'k' stands for constant, the Cop must be 36.
c=0.5m+25
(Let c be how much Sophie spent, and m be the price of the car rental.)
Sophie paid for one half of the car rental, represented by 0.5m
Sophie also pays $25 for gasoline, represented by 25
By combining all of these you find how much Sophie spent, represented by c
I hope this helps, let me know if you have any questions about my response. Have a good rest of your day, and good luck with the rest of your work!
