Answer:
The rule is "add 5, add 10, add 20" and the rule keeps doubling.
First calculate after tax tire price
$390.60 / 4 = $97.65 after tax price per tire
take the $97.65 divided by 90
97.65 / 90 = 1.085
1.085 is the rate of tax he paid per tire
Since the problem is given all the total walking distance, the first thing we are going to do is find the total distance in the map:


Now that we have the distance in the map, we can establish a ratio between the walking distance and the distance in the map:

We can conclude that each inch the map represents 0.5 miles of walking distance.
<span>#1) 3√5
#2) 6x</span><span>√5
#3) 7w^3y^2</span>√10y
2,200.413 is 2,165.413 to its nearest hundredth.