Answer:
1372$
Step-by-step explanation:
the price =15600+20/100*15600=15600*120/100=18720
18720-5000=13720 $
13720:10=1372 $
Amy would have spent $22.5 on her books (assuming you meant $10 total, not $10 per book)
9×10⁴ is 300 times greater than 3×10²
as, (9×10⁴)/(3×10²)=3× 10²
and the proper of writting powers in computer form is a×10^b
1/2 a gallon would be 3 pints
Factor the numerator and denominator and cancel the common factors.
4x^4 - 2