Oscar's traveling swim team consists of freshmen, sophomores, and juniors only. The ratio of
freshmen to sophomores to juniors is 2:4:3. There
are exactly 8 freshmen on the swim team. How
many people are on the entire swimming team?
F. 18
G. 28
H. 36
J. 54
K. 72

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 (%)