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Maria walks a round trip of 0.75 mile to school every day. how many miles will she walk in 4.5 days

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76