Answer:
b i think
Step-by-step explanation:
a. 40 if you dont believe me just look at a 40 degree triangle then the pic
A
because if you divied 100 by 400 it is a lot less than the others
12600
5% of 12000 is 600 so just add them
SI=PTR/100
SI=15500*4*6.5/100
SI=403000/100
SI=4030$
