Help!! i just need an answer

An equation where variables are used to represent known values—function notation true or false

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.

In stepmber, daniel and justin opened a business. during their first three months of business, their average monthly profit was $51. if during their first month, they lost $29, and during their second month, they gained $115, what was their profit or loss for their third plzzz i will give you 299 points