5^-4^=25-16=9 root from 9 is 3 so it’s c) 3 miles
The mode for this set of numbers is 18 because there are three 18's in the set of number, and only two 20's. :D
All I know is that it is not a function it is okay for the domain x to repeat but not the y
20.24=2.024 x 10
Answer: 2.024 x 10
