Slope is cost per arrangement so 3+10d
0 arrangements cost 0 dollars so there is no y-intercept.
Thus we get C=(3+10d)x where x is the number of arrangements
The answer is 680 centimeters
2/6. divide 2 by 2 and u get 1 and 6 by 2 and u get 3 which means 2/6=1/3