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To find the result of the calculation .5 x 10 + 4.8, we first need to perform the multiplication part of the expression. Multiplying .5 by 10 gives us 5.

Next, we add this result to 4.8. When we add 5 and 4.8 together, we get 9.8. Therefore, the correct result of the entire expression is 9.8. This demonstrates a basic application of the order of operations, where multiplication is performed before addition.

This understanding is crucial, as it highlights the importance of following mathematical rules in calculations to arrive at accurate results.