Are you allowed to make -623=-12^n into 623=-12^n?

or

answer: 12   they all have at least 28 days

step-by-step explanation: haha

answer:  

step-by-step explanation:

odd numbers are only divisible by 1 and itself.

even numbers are divisible by more than 1 and itself.

for example 6 is even because it is divisible by more than 1 and its self. 1 x 6= 6 ; 2 x 3= 6

and 7 is odd because only 7 x 1 equals seveb