Answer:
You could buy 3 books
Step-by-step explanation:
because 5% of 20 is -1 dollar making it 19 then 6.30 + 6.30 + 6.30 = 18.90 and then you would only have 10c so you couldnt buy any more books.
3
Do it on standard form
Doing it by standard form ensures simplifying
A,B
4(2x+y)
4•2x + 4•y
8x+4y
2(4x+2y)
2•4x + 2•2y