Something's not quite right here. What do you mean by "N?"
I could and will make assumptions regarding what you meant. (Feel free to correct me if need be.)
Find the equation of a line through (0,2) <span>which is perpendicular to the line y=3x+3. To find the slope of this perpendicular line, take the negative reciprocal of 3 (the slope of the given line). It is -1/3.
Using the point-slope form of the equation of a straight line:
y = (-1/3)x + 2 (answer)</span>
Answer:
37.5 Gallons will be used after a 15-minute shower.
50 Gallons will be used after a 20-minute shower.
DM me if you need an explanation.
It would be 93.75 pounds as the conversion rate goes for dollar bills than pounds