find the least common denominator for the following rational expressions.
18/r-4 5r/r^2-5r+4 r+7/r^2-4r-5
(r-1)(r-4)(r-5)
(r- 1)(r + 4)(r-5)
(r-1)(r + 1)(r – 4)(r-5)
(r- 1)(r+ 1)(r + 4)(r-5)

Create a graph for the demand for starfish using the following data table: quantity/price of starfish quantity (x axis) of starfish in dozens price (y axis) of starfish per dozen 0 8 2 6 3 5 5 2 7 1 9 0 is the relationship between the price of starfish and the quantity demanded inverse or direct? why? how many dozens of starfish are demanded at a price of five? calculate the slope of the line between the prices of 6 (quantity of 2) and 1 (quantity of 7) per dozen. describe the line when there is a direct relationship between price and quantity.

Shared decision making is always a positive strategy to take

*segment an is an altitude of right ? abc with a right angle at a. if ab = 2root 5 in and nc = 1 in, find bn, an, ac.