After a 80 % reduction, you purchase a new sofa on sale for $144. what was the original price of the sofa?

720.00

Step-by-step explanation:

20% is 144

so i multiplied 144 times 5=720

school a:

minimum value is 2

maximum value is 22

the lower quartile is 2.5

the median is 10

the upper quartile is 15.5

school b:

minimum value is 9

maximum value is 20

the lower quartile is 12

the median is 16

the upper quartile is 18

box plot for school a isn't symmetrical. the data tails on the right

box plot for school b isn't symmetrical. the data tails on the left

hope i

-lavira: )

presumably all methods would give the same solution; for each choice we just try x=-4, y=2 and see if it checks.

a.

3x+13y=3(-4)+13(2)=-12 + 26 = 14   that checks

6x+11y=6(-4)+11(2)=-24 + 22 = -2 that checks too

b.  

4x + 5y =4(-4)+5(2)=-16 + 10 = 6   nope

c.

5x+4y = 5(-4)+4(2)=-20 + 8= -12 nope

d.

10x+3y = 10(-4)+3(2)=-40 + 6 = -34 nope

answer: a (the first one) is correct