Ms. Kwan is making sandwiches for a class picnic. She prepares 1 1/2 sandwiches for each student in the class and 4 more sandwiches in case there are guests. which inequality shows how many students, S, are in the class if Ms. Kwan prepares no fewer then 49 sandwiches? A S > 30 C S 30 D S < 30

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Sam chose D as the correct answer. how did he git that answer?
we are doing grater then or less then and grater then or = to and less then or = to

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

Alice is paying her bill at a restaurant. but tax on the cost of a male is 5%. she decides to leave a tip 20% of the cost of the meal plus the tax

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?