Similar triangles scavenger hunt

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

What is the length of the missing leg in this right triangle? 18 mm 24 mm 26 mm 32 mm

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.