Pamela made a pillowcase with an area of 324 square centimeters. the pillowcase is square-shaped and looks plain. pamela decided to add a lace trim around the pillow to make it look better. if the lace is sold for $0.98 for every 2 centimeters, then about how much money will pamela need to purchase the lace? show your work.

Bruce is getting materials for a chemistry experiment his teacher gives him a container that has 0.25 liter of liquid in it. bruce need to use 0.4 of this liquid for the experiment. how much liquid will bruce use?

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)

Find two numbers if their sum is 91 and the ratio is 6: 7?