algebra

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If trend for the depreciation of the press continued, what would be its value in the year 2015? Show how you obtained your answer using the linear equation you found in part c).
Show or explain your work here:
e) If the trend continued, in how many years would the value of the printing press be \$24,000? Show how you obtained your answer using the linear equation you found in part c).
2) Suppose that the length of a rectangle is three cm longer than twice the width and that the perimeter of the rectangle is 90 cm.
a) Set up an equation for the perimeter involving only W, the width of the rectangle.
b) Solve this linear equation algebraically to find the width of the rectangle. Find the length as well.
c) Using the same length as your answer in part b), find a new perimeter if the new width is 5 less than one-half of the length.
Explain your work here in one or two sentences: same what is the answer and how did you get it.

• algebra -

I did not find any linear equation in Part C, whatever that is, but you should have.