I think it was be 220 because if theres 55 in a 10 stack it should be 55x4
I’m sorry I don’t get that whole situation
To find the area of a triangle, use the formula that is A= 1/2(base x height)
Answer:
c is the answer since you are trying to make the ys number (-/+) of the value the other y contains
(3) so you will multiply the first equation by -3 to be able to eliminate y
