We are given this

write it as the difference of cubes

use the formula for the difference of cubes

Now use the formula for the difference of squares as 

XZ=XY+YZ
JL=JK+KL
use the trigonometric values table or unit circle to calculate the expression
Average speed = (distance covered in some time) / (time to cover the distance)
4 hours 45 minutes = 4-3/4 hours = 4.75 hours
Average speed = (3,800 km) / (4.75 hours) = 800 km/hr
Answer:
they pay $x*35.25
Step-by-step explanation:
this is the answer