I'd appreciate it if anyone could out as soon as possible!
which equation should be used to imply that l and p parallel?
choices:
question 5 options:
3x + 14 = 8x - 21
(8x - 21) - (3x + 14) = 90º
2 • (3x + 14) = 8x - 21
(3x + 14) + (8x - 21) = 180º

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.

With finding limits of multi variable !

Apyramid fits exactly inside a cube. the cube and the pyramid share the same square base, and they are both exactly the same height. the volume of the cube is 66 cubic inches. what is the volume of the pyramid? explain your answer. answer asap