Sierra left $4.50 as a tip for a waiter. this was 18% of the bill before the tip. how much was her total bill before the tip?

The total bill before the tip would be $ 25

Step-by-step explanation:

Let x be the amount of total bill,

∵ tip is 18% of the bill,

So, the amount of bill = 18% of x = 0.18x,

According to the question,

0.18x = 4.50

Hence, the total bill before the tip would be $ 25.

7 weeks

step-by-step explanation:

convert each fraction to the least common multiple of 20, so 3/4 = 15/20 & 1/10 = 2/20, then divide 15 by 2 and you get a little over 7, so the food will last 7 weeks.

what's the question?

step-by-step explanation:

there is no question.