1. X=5
2. I think I’m not sure is - 5.04
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Answer:

Step-by-step explanation:
The total of legs needed to build the stools are:


Likewise the total length of the legs is:


Lastly, the quantity of rods that needed to buy is:


Answer:
You paid $40.25 in total.
Step-by-step explanation:
In this question:
Spending of 35%
Tip of 15% means that 15% of 35 will be added to your total spending. So

You paid $40.25 in total.
Answer:
Function; Not a function
Step-by-step explanation:
Write the ordered pair in the first set (x, y): (1, 11), (2, 7) , (3, 2)
Write the ordered pair in the second set (x, y): (1, 3), (1, 4), (2, 4) , (3, 2)
The first set in a function because no ordered pair has the same x value.
The second set in not a function because the x value is the same in two of the ordered pairs.