Please help with this problem:
The amount of money spent weekly on cleaning, maintenance, and repairs at a large restaurant was observed over a long period of time to be approximately normally distributed, with a mean = $615 and standard deviation = $42.
a: If 646 is budgeted for next week, what is the probability that the actual costs will exceed budgeted amount?
b: How much should be budgeted for weekly repairs, cleaning, and maintenance so that the probability that the budgeted amount will be exceeded in a given week is only 0.10?

Question

Please help with this problem:
The amount of money spent weekly on cleaning, maintenance, and repairs at a large restaurant was observed over a long period of time to be approximately normally distributed, with a mean = $615 and standard deviation = $42.
a: If 646 is budgeted for next week, what is the probability that the actual costs will exceed budgeted amount?
b: How much should be budgeted for weekly repairs, cleaning, and maintenance so that the probability that the budgeted amount will be exceeded in a given week is only 0.10?