-2x + 8 > 22
im a little stuck help

On a piece of paper graph f(x)=5•(0.4)^x

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 (%)

Opposite angles in a parrellelogram are