I'm guessing 1 and 4, but I'm not sure.
check the picture below.
so it has a base of 18x18 and a height of that much.

AD= AB+BC+CD
According to the question,
AB=BC
Then ,
AB+BC=2AB
76= 2AB + 24
52/2= AB = BC = 26.
9 times c times 4 is the same as 4 times 9 times c. What is 4 times 9?
What is your final answer?