Arectangular prism with a volume of 6 cubic units is filled with cubes with side lengths of 1/2. how many 1/2 unit cubes does it take to fill the prism

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?