The water level in a vat changed by −9.9 inches in 2.25 hours as the vat was drained. what is the average change in the vat's water level per hour?

The diagram shows a 7cm by 6cm rectangle based pyramid. all the diagonal sides - ta, tb, tc and td are length 10cm. m is midpoint of rectangular base. work out height mt to 1 decimal place

()1. how do you find range? 2.the following set of data is to be organized into a histogram. if there are to be five intervals on the graph, what should the length of each interval be? 30, 34, 23, 21, 27, 25, 29, 29, 25, 23, 32, 31

Choose the more precise measurement. 26.4 cm or 8.39 cm