112oz(lb/16oz)+x≤22
7+x≤22
x≤15
So she can pack 15 more pounds without going over the limit.
Answer:

Here you go.Hope this help!!
Don’t understand but the put in the formula to solve the problem
I got (2,-5)(-8-5)(2,19)(-8,19). Here's my step-by-step work! Hope everything makes sense! If not, feel free to comment back with any questions or concerns you have about my answers/work. :)