Which values are solutions to the inequality below?

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days

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

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)