ANSWER

EXPLANATION
The line given to us has equation,

We need to write this equation in the slope intercept form to obtain,


The slope of this line is

Let the slope of the perpendicular line be

Then


This implies that,


Let the equation of the perpendicular line be,

We substitute the slope to get,

Since this line passes through

it must satisfy its equation.
This means that,




Wherefore the slope-intercept form is
Entire distance = 1,320
Entire time = 5 hours
bus avg = 40 km/h
plane avg = 600 km/h
Working this by trial and error
1 hour bus 4 hour plane = 40 + 2,400 = 2,800 distance (too high)
2 hour bus 3 hour plane = 80 + 1,800 = 1,880 distance (too high)
3 hour bus 2 hour plane = 120 + 1,200 = 1,320 distance (Correct!!)
So, they traveled 3 hours by bus and 2 hours by plane
(yes, you had the right answer).
Answer:
$50.54
Step-by-step explanation:
$66.00 x .30 = $46.80 x .08 = 3.74 + 46.80 = $50.54
it has 7 symmetry regular lines