A triangle has vertices r(1,2), s(3,3) and t(-3,4)

Give The Rest of the question

Reflection about x axis

r(1,2)r'(1,-2)

, s(3,3) s'(3,-3)

and t(-3,4)t'(-3,-4)

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18

answer: 12   they all have at least 28 days

step-by-step explanation: haha