The cost c (in dollars) of building a house is related to the number k of carpenters used and the number e of electricians used by the formula† c = 15,000 + 50k2 + 60e2. if the cost of the house is fixed at $100,000, find dk/de e = 15

Aswim teacher sells lesson packages. the best deal has the highest ratio of lessons to total cost.swim lesson packagesnumber of lessons total cost$10$4010 1 $8015$80which package is the best deal? l lesson for $105 lessons for $4010 lessons for $8015 lessons for $80mark this and returnsave and exit

Astudent survey asked: "how tall are you (in inches)? " here's the data: 67, 72, 73, 60, 65, 86, 72, 69, 74 give the five number summary. a. median: 73, mean: 70.89, iqr: 5, min: 60, max: 74 b. 60, 66, 72, 73.5, 86 c. 60, 67, 72, 73, 74 d. 0, 60, 70, 89, 74, 100

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28