3+p=8
-p -p
3=8-p
-8 -8
-5=-p
swap signs
5=p
An interval scale has measurements where the difference between values is meaningful. For example, the year 0 doesn’t imply that time didn’t exist. And similarly, a temperature of zero doesn’t mean that temperature doesn’t exist at that point. Arbitrary zeros (and the inability to calculate ratios because of it) are one reason why the ratio scale — which does have meaningful zeros — is sometimes preferred.
There are 15 different variations of nachos possible.
12(2)+12(3)= (3+2) (12)= 5(12)=60
