Ineed graphing s = 90n +2500. it is a function.

Is the square root of 4 plus the square root of 16 rational?

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 (%)

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount