Answer:
D
Step-by-step explanation:
The mean of a standard normal distribution is always = 0 with the standard deviation being equal to. Therefore a standard normal distribution is a normal distribution described with a mean of 0 and standard deviation of 1. Since a standard normal distribution is centered at the middle with equal distribution to both the left and right of the distribution. The centre point is 0, which is the mean and the standard deviation is 1 to either side of the distribution.
6(y+3) = 72
6y + 18 = 72
6y = 72 - 18
6y = 54
y = 54/6
y = 9
I would say D. 10/16, 5/8
Hope This helps :)
