Any number greater than 700,000 with ten-thousands digit 1 through 4 will round down to 700,000. For example, 748,235 will round to 700,000.
Answer:

Step-by-step explanation:
Given

--- first discount
--- second discount

Required
Determine the amount paid
First, we add the total discount:



If she got a discount of 40%, then she paid 60% (i.e. 100% - 40%)
So:


Calculate the sales tax




The first answer
-40y3/x5
Answer: A
Step-by-step explanation: Because it can be simplified twice.