1. fredry bought x boxes of cookies to bring to
a party. each box contains 13 cookies. he
decides to keep two boxes for herself. he
brings 70 cookies to the party. which equation
can be used to find the number of boxes, x,
fredry bought?

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 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)