Pls answer correctly and if you also give an explanation you get a brainless :)

Plzzz i beg u so much asap ! what is the slope of this line? enter your answer in the box.

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

If you have the following equation, 2/3x+5/6-x=2-3/4x what would you multiply each term by to get rid of all the fractions