There is one solution because the lines intersect only once.
It is given that price of 3 muffins = $3.25
So price of 1 muffin=

And cost of 12 muffins

Therefore cost per dozen of muffins is $13 .
Answer:
or 
Step-by-step explanation:
Look at photo attached.
Hope this helpsʕ•ᴥ•ʔ
Answer:
815/1000=163/200 is the simplest form.
Answer:
He is asking about the power not the answer. I did a small calculation like 8*3 should be a 2 digits number. Took 10^1 out & simply 10^1*10^12*10^2= 10^15