Please help

Question 3 0/1 pt 9 3 99 0 Detai A rectangular field whose area is 19000 square feet is to be divided into two parts as shown. Fencing must be used to enclose the field, as well as for the internal partitions. length i width O By how much did the total amount of fencing change as the width went from 200 feet to 300 feet? (round your answer to three decimal places) What was the average rate of change over this interval? (round your answer to three decimal places)