Just the first two. Just show all work

Suppose a distribution has a mean u = 2 and standard deviation o = 6. What is the value of x if it is z = +3.00? 0 6 O 18 O 20 O 12 A normal distribution has a u = 20 with a o = 8; which values represent the boundaries where 95% of the scores are located? 20 and 36 O 4 and 20 O 4 and 36 12 and 28 Suppose a normal distribution has a normal distribution with a u = 15 and a standard deviation o = 5. Between what values of x do 68% of the values 10 and 20 O 5 and 25 O 15 and 25