G(x) = x2 + 8x– 15

g(-9) – 7=

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?

What is the factored form of the following expressions? d^2 – 13d + 36

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 (%)