Which of these observations are testable?

a) The teller at the bank with brown hair and brown eyes and is taller than the other tellers.

b) I caught four fish at the seven o'clock in the morning but didn't catch any at noon.

c) The salaries at Smith and Company are based on the number of sales and Billy makes 3,000 dollars more than Joe.

d) When Sally eats healthy foods and exercises regularly, her blood pressure is lower than when she does not exercise and eats fatty foods.

e) The Italian restaurant across the street closes at 9 pm but the one two blocks away closes at 10 pm.

f) Bob bought a new blue shirt with a golf club on the back for twenty dollars.

g)For the past two days the clouds have come out at 3 pm and it has started raining at 3:15 pm.

h)George did not sleep at all last night because he was up finishing his pape

i) Ice cream melts faster on a warm summer day than on a cold winter day.