the rainfall on a certain day was 4cm how many litres of water fell on 4 hectares of field on that day​

step-by-step explanation:

1/800 is the right answer

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

ratio is 2 : 9

the answer is three

13.5 : 3