A toy store sold a toy train set for $49.95 last year. This year, the same
train set costs $52.50. What was the
percent increase of the cost of the
train set?

5.11%

Step-by-step explanation:

The formula for percent increase is given as:

% increase = Increase ÷ Original Cost × 100.

Increase = Current cost - Original cost

= $52.50 - $49.95

= $2.55

Hence,

% increase = $2.55/$49.95 × 100

5.1051051051%

Approximately , Percent Increase = 5.11%

Therefore, the percent increase of the cost of the train set is 5.11%

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the square root of what number? if you add that, then someone will probably answer the question.