Find the measure of the angle.

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 (%)

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39

The holiday party will cost $160 if 8 people attend.if there are 40 people who attend the party, how much will the holiday party cost