half cylinder fish tank has a tank height of 25 inches and a tank diameter of 22 inches. what is the volume ?

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

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.

Find the area of the triangle shown 3 by 6