Rachel spends 1/4 of her money

on chocolate, 1/8 on pizza.

She has $40 remaining.

How much did she have

at the beginning?

Step-by-step explanation:

Let's start by defining our term:

How much she had at the beginning = B

Now let's edit that value like the problem says

B - B/4 - B/8 = 40

Let's multiply everything by 8 to get rid of any denominators

8B - 2B - B = 320

5B = 320

B = 64

Answer:

Rachel had $64 at the beginning.