ANSWER

EXPLANATION
The unit rate of the data represented by the straight line going through the points (0,0) and (1,4) is the slope of the this straight line.
We use the slope formula to determine the unit rate.

This implies that,


Hence the unit rate is 4
Answer:
interest =360
Step-by-step explanation:
Using the formula i = prt (interest =principal x rate x time)
From the information provided p=800, t=15, r=3% (0.03)
i= 800x0.03x15
i=360