Please help! Will give brainliest if reasoning is valid. Can someone please tell me why Step 6 is incorrect. The incorrect steps are 3 and 6, but I don’t know why 6 is incorrect.

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.

Given: and prove: what is the missing reason in the proof? given transitive property alternate interior angles theorem converse alternate interior angles theorem

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?