Please answer by today, I'll give brainliest when I can. Help is appreciated!

Answer:
b = 16.5; 13; 9.5; 6; 2.5
Step-by-step explanation:
Subscribe the given information to get an Answer.
b = 39 / 2 - 3 = 16.5
b = 32 / 2 - 3 = 13
b = 25 / 2 - 3 = 9.5
b = 18 / 2 - 3 = 6
b = 11 / 2 - 3 = 2.5