Which of the following repeating decimals is equivalent to -5 1/9

What are the soultion(s) to the quadratic equation 40- x^2=0

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

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 (%)