4.16 I think if I did the math right
Answer:

Step-by-step explanation:
Standard equation of a line is y = mx + b, where m is the slope.
Given line y = - 3x + 78, slope, m₁ = -3
<em><u>To find the line perpendicular to the given line.</u></em>
The lines are perpendicular to each other if the product of their slopes = - 1
That is,

So the slope of new line is


45 is the answer i hope this helps
Answer:
1.609344 kilometers
Step-by-step explanation:
D because u going to take y6 and y 15 multiples the number it equal to y90 and take x-2 divide into 90