Can someone plz help me solved this problem! I need help! Plz someone help me I will mark you as brainiest!

Part a) is partially correct. You need to change that 35 to 36.

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Part b)

W = width

L = length = W+5

P = perimeter of rectangle

P = 2L+2W

25 < P < 36 ... from part a)

25 < 2L+2W < 36

25 < 2(W+5)+2W < 36

25 < 2W+10+2W < 36

25 < 4W+10 < 36

25-10 < 4W+10-10 < 36-10 ... subtract 10 from all sides

15 < 4W < 26

15/4 < 4W/4 < 26/4 ... divide all sides by 4

3.75 < W < 6.50

The graph is shown in the diagram below.

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Part c)

L = W+5

W = L-5

3.75 < W < 6.50 ..... result from part b)

3.75 < L-5 < 6.50

3.75+5 < L-5+5 < 6.50+5 ... add 5 to all sides

8.75 < L < 11.50

The graph is shown in the diagram below.

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.