Answer:
67.5
Step-by-step explanation:
4.5x6x2.5=67.5
The slope of a graph is rise over run. So count how many units up you move and put that over how many units right you move. If you are moving down or to the left it would be negative.
The equation of line perpendicular to 4y = x-8 passing through (3,-3) is:

Step-by-step explanation:
Given equation of line is:

We have to convert the given line in slope-intercept form to find the slope of the line
So,
Dividing both sides by 4

Let m1 be the slope of given line
Then

Let m2 be the slope of line perpendicular to given line
As we know that produt of slopes of two perpendicular lines is -1

The slope intercept form of line is given by:

Putting the value of slope

to find the value of b, putting (3,-3) in equation

Putting the value of b in the equation

Hence,
The equation of line perpendicular to 4y = x-8 passing through (3,-3) is:

Keywords: Equation of line, slope
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Answer:
He volunteered 10 hrs 15 min on average.
Step-by-step explanation:
The first week: 8 hrs
The second week: 12 hrs
The third week: 12 hrs
The fourth week: 9 hrs
8 + 12 + 12 + 9 = 41 hrs total
41 hours/4 weeks = 10.25 hrs (10 hrs 15 min)