4) In a survey, the ratio of students who prefer Italian dressing to ranch dressing is 3 to 10. If
the number of students who prefer Italian is
45, how many students prefer ranch?

Evaluate cos2θ for cosθ = square root of 3/2

The pyramid shown has a square base that is 24 centimeters on each side. the slant height is 16 centimeters. what is the lateral surface area?

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 (%)