What is the value of y in the equation 5x + 2y = 20, when x = 0.3?

Substitute x = 0.3 into the equation: 5(0.3) + 2y = 20. Since 5(0.3) = 1.5, subtract 1.5 from 20 to get 2y = 18.5, then divide by 2 to find y = 9.25. The correct choice is 9.25.

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