What is the unit rate of $75.20 in 8 hours

What you do for these is set up a proportion
75.20/8=x/1
solve for x  by dividing 75.20 by 8 
which gives you 9.4

If the tree is 4 feet tall and it's shadow is 8 feet tall, we can come up with this equation.
4x=8.8, x being what you need to multiply by to get the value.
Simplify the equation, and you have x=2.2.
So, if the flagpole's shadow is 22 feet long we can come up with this equation. 2.2y=22. 
simplify that equation and we end up with y=10
So therefore, the height of our flagpole is 10 feet.

I really hope this helps, have an awesome day!!

(brainliest is always appreciated)