Question 295618
We subtract the taxes T from 100000
100000-T 
No we give the bonus of 20 % 
20%=.20
B=.20*(100000-T)
a) What equations ? There is only info for one equation.
b) Supply of what. There is no mention of supply before the question.
c) Demand for what? There is no mention of demand before the question.
d) Again we have no info on supply nor demand. 
Did you leave out something?