Describe the mood of the introduction. Explain how author Lauren Tarshis creates this mood. (I don’t want a Link)

When you arrive at the lake, your friend realises he hasn’t got any swimming trunks. you need to ride to a sports shop. the sports shop is 8350 metres away. how many metres is it to cycle there and back?

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =