Let set a = {1, 3, 5, 7} and set b = {1, 2, 3, 4, 5, 6, 7, 8} which notation shows the relationship between set a and set b? @ganeshie8,

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 (%)