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Answer:
$96 spent.
Step-by-step explanation:
Set up a proportion to determine the amount spend for 72 sheets. Express it in sheets/amount spent:

Cross multiply:
6 · x = 8 · 72
6x = 576
Divide:
x = $96 spent for 72 sheets.
Step-by-step explanation:
that is just a complicated way to ask, at what values of x is the functional value infinite ? or directly, for what values of x is the denominator of that fraction 0 ?
it is zero, if just one of the 3 factors is 0.
and that would happen for
x = 0
x = -6
x = 1
so, A, D and E are correct.
Answer:
A rhombus and a square since a square is also a rhombus.
7,000 ft
area of triangle formula=1/2*base*height