The answer is 9
both 81 and 63 are dividable by 9, and nothing higher
1 US pint = 473.176473 milliliters
473.176473 x 62 = 29,336.941326
29,336.941326 / 300 = 97.78980442
~ 97 glasses are in a pony keg
I am using "x" but alphabet letter does not matter.
#9
Words: x is greater than or equal to -4
Algebra: x ≥ -4
Possible solutions: 0,1,2
#13
Words: x is greater than 0
Algebra: x > 0
Possible solutions: 1,2,3
C has a negative answer. hope this helps