Respuesta :

Answer:

42.3

Step-by-step explanation:

Substitute the variables

3.6x+4.5y when y=7 and x=3

3.6(3)+4.5(7)=42.3

Answer:

42.3

Step-by-step explanation:

3.6(3) + 4.5(7)

10.8 + 31.5

42.3

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