please help me find each unit price

Answer:
13.$1 per 2 pounds (1/2)
14.$3 per 10 ounces (3/10)
15.$3 per 5 pens (3/5)
16.$12 per 1 book (1/2)
17.$7 per 1 shirt (7/1)
18.$7 per 5 tapes (1/2)
Step-by-step explanation:
Please give me brainliest I really want to rank up.