exam Maths Puzzle Numerical Ability

I dont know how to set it up:
The length of a standard basketball court can vary from 84 feet to 94 feet, inclusive. Write an absolute value inequality that describes the possible lengths of a standard basketball court.

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exam Other Question

When substituting for a variable in a function graph, how do I select the correct substitution for the variable.

Example: f(x)=-7(x)

When making a graph, I am not sure how to get the input, and output.
I need help. Would be so kind to help please

Find the perimeter of the parallelogram ABCD with vertices

A(-3,-2),

B(6,-2),

C(4,3), and

D(-5,3).

So for this p