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Start with the given equation.

Plug in

.

Cube

to get

.

Square

to get

.

Multiply 0.004 and 27,000 to get 108

Multiply -0.15 and 900 to get -135

Multiply 4.9 and 30 to get 147

Combine like terms
So the height is 127 units (you forgot to include the units in the problem) when