2.) What is the value of 7b + 6 when b = 4?*
OA) 34
O B) 46
O C) 53
OD) 80

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 (%)