Which expressions are equivalent to −90−60w?

Find the lateral surface area plzzz

()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

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.