I asked Siri here’s the answer
A) point (8.28)
the time is 8 minutes
28 is the water level which is 28 cm
b) 3.5
the function for the situation is y=3.5x
the slope of the function is equal to the value of the unit rate
I get 0
PEMDAS
-4+2=-2
-2(-2)=4
4-4=0