Ok, so:
Given that the markup on a restaurant meal is 250% and a meal costs $7.30 to produce.
We are going to find the amount of money that a customer be charged before tax and tip.
So, for this, we do the following:
= 250% * (7.30).
= (250)/100 * (7.30)
= 2.5 * 7.30
= $18.25
Then, the amount of money that a customer be carged before tax and tip is the sum of the last result and $7.30.
This is $7.30 + $18.25, which is $25.55
