This block of wood has a 2 cm square hole cut through the length. What is the volume of the block of wood after the square hole has been removed? V=lwh

Question 3 options:

168 cm3

200 cm3

25 cm3

196 cm3

Is the square root of 4 plus the square root of 16 rational?

Ineed in figuring out this problem.

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.