A bookstore has a sale: Jen wants to buy four books: for $10.00, for
$12.00, for $15.00, and for $20.00.
What is the smallest she could pay for these books during the sale?
By what percent would the sale reduce the total cost of these four books?
Please explain all steps and please don't like any files to answers! Thanks! :)

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2

6(h+1)/2=a

a=area

step-by-step explanation:

its the same thing as a square or rectangle but after multiplying two sides you need to divide it by two.