The square of a certain negative number is equal to five more than one-half of that number. What is the number? -2
-5/2
-1/2

Write two subtraction equations that are equivalent to 5 + 12 = 17.

Solve the equation -9p - 17 =10 a -3 b. 16 c. 18 d -16

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.