Answer:
53
Step-by-step explanation:
PEMDAS:
7x7+1+ 16/8- (6-7)
7*7+1+16/8-(-1)
49+1+2-(-1)
52-(-1)
53.
The domain is {3,6,−1,5,−4}
54
216/4=54
So you want to go to your calculator type 42 divided by zero, and you should get a 52.5.