Please help! show the work please! thank you!

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

Which point lies on a circle with a radius of 5 units and center at p(6, 1)?

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 (%)