6 sump pumps working at the same rate drain a flooded basement in 5 1/4 hours. How long would it take 2 pumps to drain the same amount
from the basement?

What are the domain and range of the function? f(x) = -4 (sqrt)x

The line y = x + passes through (−3, 7) and is parallel to y = 4x − 1.

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.