At gina's closet, 3/5 of the clothes are white and another 1/5 are black. what fraction of the clothes are either black or white

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 (%)

Find the rate at which the water is now flowing from the tap give your answer cubic centimetres per second

What is the domain of the step function f(x)=[2x]-1?