An economist predicts that the cost of food will increase by 4% per year for the next several years. a. use the economist’s prediction to write an explicit rule for a geometric sequence that gives the cost in dollars of a box of cereal in year n that costs $3.20 in year 1.

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28

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)