What is the justification for step 3 in the solution process? 0.8a − 0.1a = a − 2.5 Step 1: 0.7a = a − 2.5 Step 2: -0.3a = -2.5 Step 3: a = 8.3

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

Need on this geometry question. explain how you did it.

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.