Take the same lake from the previous question and assume that an outflow river from the lake has a flow rate of 189.71 ft3/s and loses 330 cm3/min of water through evaporation. What is the net rate of change in the lake’s volume in m3/day (note: the net rate of change can be calculated by taking the total input rate minus the total output/loss rate and be careful of units)?

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