What expression can be used to determine the total cost of buying m pounds of almonds for ​$4.45 per pound and f pounds of flour for ​$0.91 per​ pound?

Given this information, which expression must represent the value of b?

It takes a total of 6 hours to fill up an inground backyard pool using a standard house. a function can represent this situation to represent the amount of water in the pool until it is full a function of time the hose is running. determine the domain for the function

Can someone me i’m confused. will give brainliest and a whole bunch of points