Will give brainliest. im trying to buy a flea comb. i only have ~$6. i found one flea comb for $2.12 including shipping and tax. however, its expected delivery was dec.20-jan22.
i found a seconds one that, including tax and shipping is $5.29. its shipping date would be nov.20-nov.27. which should i buy? (legit answer or the answer is getting reported.)

Noor brought 21 sheets of stickers. she gave 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1 1/2 sheets each.

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.

Two numbers have a sum of -19. one number is x. what expression represents the other number?