Jake walks from the library to the museum along 3th avenue. he stops at the post office and at a store. the distances between the streets he crosses are all the same.

Need ! give step by step solutions on how to solve number one \frac{9-2\sqrt{3} }{12+\sqrt{3} } number two x+4=\sqrt{13x-20} number three (domain and range) f(x)=2\sqrt[3]{x} +1

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

Will give brainliestbased on the topographic map of mt. st. helens, what is the contour interval if the volcano height is 2,950 m?