Answer:
The constant of variation is 3
Step-by-step explanation:
Given.


And y is directly related to x
∝ 
Here k is constant of variation

--------------(1)
Put the
and
value in equation 1.


So, the constant of variation is 3.
The dimensions of the base of Box 1 are x by 3x.
The base area of Box 1 is:
3x^2
Answer:
2x+5<10
Step-by-step explanation:
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