You work for a flower company. You sell roses at these prices: 3 roses for $9, 12 roses for $14.40, and 36 roses for $45. What is the approximate percentage difference of the best and worst rose deals according to their unit costs?

A. 6%

B. 18%

C. 22%

D. 29%

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

you can download it here

won't that be plagrisim thought?

step-by-step explanation:

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)