From the given question we come to know of certain number of facts and they are:
At 1:00 PM the water level of the pond was = 13 inches
At 1:30 PM the water level of the pond was = 18 inches
At 2:30 PM the water level of the pond was = 28 inches
From the above given facts we can easily find the amount of water changing every half an hour.
Amount of increase in water from 1:00PM to 1:30 PM = (18 - 13) inches
= 5 inches
Amount of increase in water level from 1:30PM to 2:30PM = (28 -18) inches
= 10 inches
From the above two deductions we can come to the conclusion the the constant rate of change in water level is 5 inches for every half an hour.
Since the ratio of sides is 4 to 3, the proportion is:

x =
9
Answer:
I think the answer is B.
Step-by-step explanation:
I am very sorry if it is incorrect.
Answer:
this is the answer okay
Step-by-step explanation:
thisis the answer
Answer:
there's nothing there
Step-by-step explanation: