Kelli=X·$29.99+$25·1=54.99---> 1 jean and the blouse
Gina=X·$23+$37·1=$60----> 1 jean and the blouse
There is a problem with this problem. it doesnt say if gina bought more or if kelly bought more so saying that they bought the exact same pairs of jean it would be an inequation=
$29.99·X+$25<$23·X+$37---> One spent more than the other one
I think to be a function is when you have to groups of something or if it's an number it can be an even number or an odd number you just have to find out what it is.