247 is the correct answer!
I got x = -78.75 , i included a picture of my work because it’s too difficult to put into text!
It's a perfect square because 8 times 8 equals 64.
Answer:
area = 6x^2+10x-4 perimeter= 5x+3
Step-by-step explanation:
11: 22,33,44,55
8: 16,24,32,40,48
2: 4,6,8,10,12