Simplify the expression:
(9j + 1)(5)

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 (%)

Find the solution of each of the following.

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function