Which of the following ratios is closest to the golden ratio

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

Solve the equation x/4 - 5= -8 -27 -12 -7 12

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 (%)