No calculators please

Question 6: inches per hour y = f(t) 0.8 - hours 5 10 15 20 25 Above is the graph of f(t), which measures the rate of rainfall during the first 25 hours of a storm. (a) What was the average rate of rainfall during the first 6 hours of the storm? Fully simplify your answer into a fraction. (b) How long did it take for the first 6.5 inches of rain to fall? (c) How much rain fell between hours 10 and 18? (d) A bucket was sitting outside during the entire storm. Initially, it had 2 inches of water in it. How much water is in the bucket after the first 20 hours of the storm