Answer: 9/81
Step-by-step explanation:
I did 3 to the second power then 3 to the fourth power. Then put them on top of each other. If the over is supposed to mean division then the answer would be 9.
As we can assume the relationship is directly proportional, we have to build the proportion and do the cross product. So:

She needs 3 nights
The following equation, y − 8 = 15 (x + 5) is in the slope-intercept form and will be y=15x+83.
<h3>What is a straight line?</h3>
A straight line is a combination of endless points joined on both sides of the point.
The slope 'm' of any straight line is given by:
A linear equation has the form y = mx + b in the slope-intercept format. X and Y are the variables in the equation. The values m and b represent the line's slope (m) and the value of y when x is 0.

It is given that the equation is,
y − 8 = 15 (x + 5)
y=15(x+5)+8
y=15x+75+8
y=15x+83
A linear equation has the form y = mx + b in the slope-intercept format.
Thus, the following equation, y − 8 = 15 (x + 5) is in the slope-intercept form and will be y=15x+83.
Learn more about the straight line here:
brainly.com/question/3493733
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Answer:
See below.
Step-by-step explanation:

The first step could be more complicated if the fractions didn't already have a common denominator.