Please help me asap and not just comment forr points.

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3

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 (%)