Select the pairs that have a GCF of 3

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 (%)

The area of square garden is 300m squared. how long is the diagonal?

Find the value of x. give reasons to justify your solutions! l, m ∈ kn