3. Which number is a distance of 4 units away from 2 and a distance of 2 units from -4? HH
-6
-5
-4
-3
-2
-1
0
1
2.
3
4
5
6

What is the inverse of the function f(x) = 2x + 1?

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.