If people help me and i get an 80% or higher on my MATH TEST ill give out 50 POINTS A. 28.5 in B. 27 in
C. 0.188 in
D. 28 in

B: 27

Step-by-step explanation:

the scale factor is 1:12 so the model, 2.25, is 1 and 12 is the actual, then the actual is 12 times the model. so we have to multiply 2.25 by 12 which gets us our 27.

i hope this helped :))

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons