X · 1 + = ___.

1
x
1 + x
2x

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 (%)

Solve the formula ax+ by = c for x.

Which expression is equal to (f+g)(x)?