Jennifer is taking a speed reading course. she records m(t), the most number of words that she can read in a minute (wpm), after t weeks of beginning the course.
t] 1 2 3 4 5 6
m(t)]124 160 220 304 412 544
according to the table, what is the average rate of change over the interval [1, 4]?
a. 60 wpm per week
b. 180 wpm per week
c. 144 wpm per week
d. 48 wpm per week

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field