Kelly sold half of her book and then bought 5 more she now has 15. How many did she being with

Okay, so if she began with 20 and sold half of 20, then she would be left with 10. And then she bought 5 more which got her to 15. So Kelly began with 20 books.

Step-by-step explanation:

-4

step-by-step explanation:

do 6-10=

if u need it to be negative.

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3