problem 4 i took picture of

problem 13
the perimeter of a rectangle is 336 inches. the ratio of the length to the width is 9: 5. find the length of the rectangle.

problem 16
a blueprint for a house states that 2 inches on the blueprint represent 8 feet. if the width of a window is 2.5 inches on the blueprint, what is the actual windows with?

Since 2 inches represent 8 feet then 2.5 would represent x feet so  

2/8 = 2.5/x  

By doing cross multiplication :  

2 x = 20 --> x = 10 feet

Step-by-step explanation:

-362

step-by-step explanation:

(12)(4)+2(12)-34(12)+2(12)-3

  \/         \/         \/         \/

  48 +   24 -   408 + 24 - 3

      \   /               \   /

          72     -     432 - 3 = -363