Mark:
10) A
11) B
12) C
13) A
If Francis had written it like this:
9) (((2 exp 6)-4)/3)
it would have been the correct answer for 9.
Francis:
(Flat joke?)
The joke is on me.

I have a near identical answer for another problem which I could not remember posting. Problem solved.
14. Two cars start off at the same point on a straight highway facing opposite directions. Each car drives for 6 miles, takes a left turn, and drives for 8 miles. How far apart are the two cars
a) 2 miles b) 11 miles c) 14 miles d) 20 miles e) 26 miles
15. Wisdom is knowing what to do next; __________ is doing it.
a) Virtue b) Luck c) Happiness d) Sanity e) Nostalgia
16. It is easier to _______________ than to offer a helping hand
a) Raise a flag b) Be on the ball c) Lay down
d) Point the finger e) Sing praises
17. Which word best completes the analogy: Water is to glass as letter is to...
a) mail b) stamp c) pen d) envelope e) book
18. What is the opposite of GOOD
(A) Clever (B) Intelligent (C) Bad (D) Quarrelsome (E) Evil
19. ROAD is to WALK as WATER is to _______________
(A) RUN (B) PLAY (C) JUMP (D) SWIM (E) SUN
20. What will be the next number in the following series -
5 7 9 11 13 (

)
(A) 12 (B) 14 (C) 15 (D) 17 (E) 19