Math problem I really need help anyone not good with math

Question

What is the recipe cost for 4oz of onion that cost 0.69/ pound in a meatloaf recipe that yields 50 4oz portions

Answer 1

First, watch your units here....

we are looking for 50 portions of 4 oz and we know what each 4oz portion costs (0.69 per LB)

there are 16 oz in a lb

50 * 4 oz *($0.69/lb))lb/16 oz

cost is $8.65