OG easy one

Of the following, which is least?

a. 1/0.2
b. (0.2)^2
c. 0.02
d. 0.2/2
e. 0.2

I searched for this, but cant find it.

GMATPrep

The lunch menu at a certain resturaunt contains 4 different entrees and 5 different sides. A meal consists of 1 entree and 2 different sides. How many different meal combinations are there? 10 20 40 80 100 I swear I got this one, but the answer key says I didnt. I also searched for previous posts an...

0/1 = 0, but you cant get that with the problem.

1/0 you can get, but you cant divide by zero

gmat prep data sufficiency

if ab does not = 0, and points (-a,b)(-b,a) are in the same quadrant of the xy plane, is point (-x,y) in the same quadrant?
(1) xy>0
(2) ax>0

I think the answers were 2, 4, 8, 16

Algebra - GMATPrep

xy=1 then the value for 2(x+y)^2 / 2(x-y)^2