How can i change whole number 4 into fraction?

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 (%)

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?

For which scatterplot is the correlation strongest?