Answer:
Step-by-step explanation:
A
Answer:
Jared has 16 books.
Explanation: Subtract 28 by 12 and you'll get 16.
This expression cannot be simplified any further.
For problems like this you can move the y's on the bottem up top by fliping the sign of the exponent (in this case 7 to -7) and MULTIPLYING it with EVERYTHING on top, then because of properties of multplication you can add the exponents to combine them into one term (in this case add 3 and -7 to get -4)

If any of this does not make sense let me know and ill try to clarify better