Answer:
a) 302.28
b)3,476.23
c)3,476.23
d) 142 units
Step-by-step explanation:

Where:
D = annual demand = 14,200
S= setup cost = ordering cost = 74
H= Holding Cost = 23.00

EOQ = 302.2811821 = 302.28
holding cost:
average inventory x holdign cost
302.28 / 2 x $23 = 3476.233594
ordering cost:
order per year x cost per order
14.200 / 302.28 x $74 = 3,476.233594
14,200 / 300 = 47.33 units per day
47.33 x 3 = 141.99 reorder point