Answer: It will take
of an hour to complete the test.
Step-by-step explanation:
We need to convert the mixed number
to an improper fraction:

Now, we need to make the following add the fractions in order to calculate how many hours will it take to complete the test. Then, we get:

Therefore, it will take
of an hour to complete the test.
A. 7*4
because there are no parentheses or exponents so multiplication is next
You factor the expression first leaving you with

Then you would cancel out 3xy as because there is exactly one on each side. This, in turn, would leave you with
z - 1