Can somebody help with this question , thank you sm :)

Write a function that matches the description. a cosine function has a maximum of 5 and a minimum value of -5. f (r) =

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

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 (%)