Evaluate the following expressions:

a) 28 -4+6

b) 6/4

c) 3*6/2-12

d) 4-6%14

e) 37/5.0

f) 15+18%3-20/6

g) 32%12+6-38/5*8 5/9*(33.6-4.5) 18.0 + 5.0*3.0/4.0