HELP ME WITH MATH PLEASE

Why does the shape of the distribution of the weights of russet potatoes tend to be symmetrical?

The 40th parallel of north latitude runs across the united states through philadelphia, indianapolis, and denver. at this latitude, earth’s radius is about 3030 miles. the earth rotates with an angular velocity of latex: \frac{\pi}{12} π 12 radians (or 15°) per hour toward the east. if a jet flies due west with the same angular velocity relative to the ground at the equinox, the sun as viewed from the jet will stop in the sky. how fast in miles per hour would the jet have to travel west at the 40th parallel for this to happen? show your work and explain your process.

Jude is making cement for a driveway. the instructions show the amount of each ingredient to make 1 batch of cement. complete each statement to adjust the ingredients for each new situation if jude uses these instructions. to make 5 batches, jude needs to packages of pre-mixed mortar. jude uses 9 quarts of water to make batches of cement. if jude uses 16 packages of pre-mixed mortar, he will need to use quarts of water. to make 0.5 batch of cement, jude should packages of pre-mixed mortar. can you fill in the blanks