His estimate is reasonable. But only if Michael is less than 2 years old.
In a trapazoid the diagonals are the same so therefore the two equations equal echother
3x+7=5x-11 solve for x by combining like terms
18=2x then divide to unto multiplication
9=x
9 is the value of x
I hope I've helped!
7+5=12 so it can be one of these 8+4=12, 9+3=12, 10+2=12, and 11+1=12.
