Answer: $31.99
Step-by-step explanation:
So, it is originally $39.99, so first we convert 20% to a decimal, which is 0.2.
Then we do 39.99 * 0.2 to find how much money was taken off.
39.99 * 0.2 = 7.998, or $8
Now, we do the original dollar amount, $39.99, minus the discount, $8, which equals $31.99.
I'm pretty sure it's C. It seemed confusing at first to me, too. Good luck on your test!
It would be called an ecological model.
f(x)=40
x=8
so if x=2 it would be 40/8 which is 5
