__5. if the formula for the perimeter of a rectangle
is p=21+2w, then w can be expressed as
21-p
p-1
(1) w=-
(3) w=
2
p-21
p-zw
(2) w-
(4) w = -
21
-
2
2

50 ! pls ! 12.  building codes regulate the steepness of stairs. homes must have steps that are at least 13 inches wide for each 8 inches that they rise.

a. discuss how to find the slope of the stairs.
b. describe how changing the width or height affects the steepness of the stairs.

One month, a music site observed that 60% of the people who downloaded songs from its site downloaded q sam's latest single. the equation below represents this information, where x represents the total number of people who ddownloaded songs from the site that month: x = 0.6x + 384 how many people who downloaded songs from the site that month downloaded q sam's latest single?

We just started the introduction into circles and i have no idea how to do this.