Find the sum: (6x2 + 8x + 8) + (12x3 - 12x2 - 2x). a. 6x3 - 18x2 + 6x b. 6x3 - 6x2 + 8 c. 12x3 - 6x2 + 6x + 8 d. 18x3 - 6x2 + 6x + 8

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.

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Which graph has a rate of change of zero