Answer:
54
Step-by-step explanation:
What I would do is multiply 12x4 first to get 48, then after I'd multiply 12x1/2 to get 6 then I'd add them together to get 54.
Answer: 
Step-by-step explanation:




Answer:
x=26 is the answer
Step-by-step explanation:
Answer:
No.
Step-by-step explanation:
No because if we substitute the given values into the equation they do not fit:
y = 7x
x = 1 and y = 4:
Left side = 4
right side = 7*1 = 7.