URGENT help needed in Statistics!

need answer to two q's!

The amount of annual snowfall in a certain mountain range is normally distributed with a mean of 109 inches, and a standard deviation of 10 inches. If 40 snowfall amounts are randomly selected, find mu(x-bar) for the sampling distribution of sample means with samples of size 40.

The amount of annual snowfall in a certain mountain range is normally distributed with a mean of 109 inches, and a standard deviation of 10 inches. If 40 snowfall amounts are randomly selected, find roe(x-bar) for the sampling distribution of sample means with samples of size 40.

thanks and cheers!