Help please this assignment will help my grade go up put I don’t understand it

Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

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 (%)

The length of a field is 100 yards and its width is 75 yards. if 1 inch represents 25 yards, what would be the dimensions of the field drawn on a sheet of paper?