! 28 POINTS!

1. 40% of what number is 18?

2. A restaurant wants to study how well its salads sell. The circle graph shows the sales over the past few days. If 5 of the salads sold were Caesar salads, how many total salads did the restaurant sell?

3. Alan has read 10% of a book. He has 10 more pages to finish. How many pages are there in the book?

4. Jess gave her hair stylist a $4.60 tip. The tip was 20% of the cost of the . Write an equation to find b, the cost of the haircut.

5. Solve each of the number sentences and describe the pattern.

90% of what number is 90?

30% of what number is 30?

464% of what number is 464?