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Do PEMDAS
Parentheses
Equations
Multiplication
Division
Addition
Subtraction

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Answer:
4. answer is -48xy
5. answer is 1
Step-by-step explanation:
4. -3/4*-8y*4/3*6x*-1
=6y*4/3*6x*-1
=8x*6x*-1
-48xy
5.
-13.6/x=-13.6/1
If the numerators are the same, the denominators have to too.
Answer:
Step-by-step explanation:
if the first number is x and the second number is y
1^3 = 1
2^3 =8
3^3=27
4^3 = 64
y=x^3
f(x)=x^3