A hiker climbed up from the bottom of a mountain. His elevation increased at a rate of 25 feet each hour. Which equation models the change in his elevation at 5 hours? O A. 5.25 = 125 B. 5(-25) = 125 C. (-5)(-25) = -125 D. 5(-25) = -125

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.

Mrs. blake's bill at a restaurant is $42.75. she wants to leave the waiter an 18% tip. how much will she pay in all, including the tip?

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?