Respuesta :

I'm assuming the expression is (1/2)*x^3+4*y

If so, then,
(1/2)*x^3+3.4*y
(1/2)*3^3+3.4*4
(1/2)*27+3.4*4
13.5+13.6
27.1

So the final answer is 27.1
webbmakena

Answer:

31.6 hope this helps! please mark brainiest!

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