Find the Domain and Range for the following functions, and then sketch its graphs?
1. y = 2 sinx + 4
2- y = |cosx|
3_ y = Vsinx
4- y = In(2x + 3)
5- y = 3e3x + 3

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 (%)

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.

Why is studying fractions important