Answer:

Step-by-step explanation:
In the distributive property each value inside the parenthesis will be multiplied by the value outside the parenthesis.
In the expression 3(x - 1) it will look like:

Then we multiply both value separately giving us:

So in conclusion it would be right to assume that.

Step-by-step explanation:
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Answer:
45 minutes
Step-by-step explanation:
Assume task completed in total x hours

So q will take 45 more minutes
Answer:
The function f(x) when x=x-4 is
or 
Step-by-step explanation:
Given function f is defined by 
Now to find the function f(x-4):

Put x=x-4 in the above function we get

(using the formula
)

(adding the like terms)


Therefore
or 
The function f(x) when x=x-4 is
or 