Need Help, Was only able to figured out the bolded ones.

You are the company's Supply Chain Manager -- solve the below questions to ensure an optimal ordering policy.
Annual requirements (R) =	14,000	units
Order cost (S) =	$120.00	per order
Holding rate (k) =	28%	annual rate		Holding Cost/unit/year
Unit cost (C) =	$36.24	per unit
Lead time (LT) =	3	weeks
Number of weeks per year =	52	weeks	120	Standard deviation
Part I
Compute the following:
Note: You must include formulas within these YELLOW cells for full credit -- do NOT simply type in answers. Add additional cells if necessary, but label each clearly!
a) EOQ =	575.44	units
EOQ (rounded to nearest whole item)	575	units
b) average time between orders =	2.1	weeks
c) safety stock for 95% cycle-service level		units
reorder point for 95% cycle-service level		units
d) annual holding cost =	2917.32	per year
annual ordering cost=	2921.74	per year
e) On hand inventory of 1300 units and a withdrawal of 95 units. Reorder? How many units?		(note: standard deviation of weekly demand=120 units)
f) number of orders placed per year =	24.3	orders
Part II
a) calculate the P(same as TBR) that gives approximately the same number of orders/year as EOQ. Round answer to nearest week.
	Safety Stock	Target Inv. Level
b) Find the safety stock and the target inventory level that provides a 95 percent cycle-service level.
c) How much larger is the safety stock than with a Q system?
Part III
Explain the difference between continous and periodic review systems of inventory management as if you were discussing with someone unfamiliar with supply chain management. Use an example in your answer.
	Q	Annual Holding Cost	Annual Ordering Cost		Total Cost
	50
	75
	100
	125
	150
	175
	200
	225
	250