Amachine pumps 4 1/2 gallons of water every hour. how many gallons of water does it pump after 2 2/3

Me, prove a quadrilateral with vertices g(1,-1), h(5,1), i(4,3) and j(0,1) is a rectangle using the parallelogram method and a rectangle method.

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 (%)

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that