Answer:
A.
Step-by-step explanation:
The given equation is

We solve for y by subtracting 3x from both sides to obtain;

We now divide through by -7 to get;

This simplifies to;

This equation is now in the form y=mx +c, where
is the slope.
Answer: 25 hours
Step-by-step explanation:

8 screens
or

Replace;



Answer:
27
Step-by-step explanation:
If you have an exponent that is a fraction, you need to make a radical with the index from the denominator and an exponent of the radicand from the numerator.
(243)^3/5=(
)
This would come out as
. this further simplifies down to the final answer of 27
5.67 (performed on a calculator)