Answer: C. The answer i got was C
The answer is 825
*Substituted formula is*
30 x (10 + 15) + 5 x 5/2 x 2 + 5 x (30 -(5 x 2)
There will be no solutions because the lines have the same slope (-4) meaning they are parallel to each other and will not cross.
Hope this helps!!
