Daniel picked out a book to give his dad for his birthday. Daniel only has 636363 cents from his piggy bank. His mom said she would pay the rest. She paid \$12.81$12.81dollar sign, 12, point, 81. What was the cost of the book?

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?