First, do what's in the paranthesis:
(4*4-12)
Multiplication first:
16-12
Then subtract:
4
We get:
5-1+2*4*8
Multiply:
2*4
8
Multiply, again:
8*8
64
We get:
5-1+64
Subtract:
5-1
4
Add:
4+64
Answer: 68
X=15degrees
The angle measurements are 30, 30, and 120 so it is an isosceles
Jonathan gets more time
if Lucas does 5 hours of homework the he plays for 2 1/2 hours, which is 1/2 hour less than johnathan