Will giveasap ! 20 point
the ceiling of katie’s living room is a square that is 12 ft long on each side. to decorate for a party, she plans to hang crepe paper around the perimeter of the ceiling and then from each corner to the opposite corner. katie can buy rolls that each contain 10 ft of crepe paper. what is the minimum number of rolls she should buy? show your work.

She can buy 5 rolls of crepe paper with 2ft of paper left.

Step-by-step explanation:

If you multiply 12ft by 4 sides you will get 48ft so then 5 rolls of paper that is 10ft equals 50ft so you will have more than enough paper

first option

a function is a relation in which an input is paired with exactly one output.

so, let's find the right answer.

in our first option, our inputs are january, february, and march. the outputs are 30, 28, and 25. each input has it's own output. this is correct!

our second option we know is incorrect, because ms. valverade has two outputs, dogs and cats. this is not a function.

our third option is incorrect as well. the yellow square has two ouputs, the square and the triangle.

lastly, in our fourth option, we see the number 7 two times with a different output. therefore, this is not a function.

remember: each input must be paired with only one output!

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb