15. Marion buys a dress and a pair of shoes at The Home Store Before adding the sales tax, she pays $45 for a dress that
normally sells for $52 and she pas 53% for a pair of shoes
that normalt sells for
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What is the lcm of 16 and 40 ? 24 and 40 ?

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)

Use the irregular polygon below. show all work. a. find the perimeter. b. find the area. the angles of the irregular polygon is 2, 8, 8, and 4.