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☆10 POINTS AND BRAINLIEST IF CORRECT☆

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 (%)

Divide. –40 ÷ –5 a –8 b 200 c -200 d 8

How are algebraic expressions evaluated using substitution?