What is the midpoint of the line segment graphed below (-1, 5) (-8, -4)

If angle 2=3x +1 and angle 3=2x +4what is angle 2

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 (%)

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?