Laurie has $5 to spend at the art-supply store. Colored markers cost $0.75 each. Laurie wrote the inequality, 0.75x < 5, where x is the number of colored markers, to determine how many colored markers she could buy. What is the greatest number of colored markers Laurie can buy and still spend less than $5? Please help ASAP I am braindead.

Zed is making a centerpiece for his dining room table by putting sand in a cube-shaped vase. the vase is 0.25 meters in length, width, and height. he bought 25 kg of sand. assume the density of dry sand is 1,602 kgm3. what is the volume of the sand that zed purchased? the volume of the sand is approximately m3. enter your answer as the number that correctly fills in the blank in the previous sentence. if necessary, round your answer to six decimal places, like so: 42.536475