Assignment:
Q1) If Ramon can mow the entire lawn in x -3 hours, then how much of the lawn does he mow per hour?
Q2) Toxic pollutants. The annual cost in dollars for removing p% of the toxic chemicals from a town's water supply is given by the formula C(p) =500, 000/100-p
a) Use the accompanying graph to estimate the cost for removing 90% and 95% of the toxic chemicals.
b) Use the formula to find C(99.5) and C(99.9).
c) What happens to the cost as the percentage of pollutants removed approaches 100%?
Q3) Magazine sales. Henry sold 120 magazine subscriptions in x days.
a) Write a rational expression for the rate at which he sold the subscriptions.
b) Suppose that he continues to sell at the same rate for 5 more days. Write a rational expression for the number of magazines sold in those 5 days.
Provide complete and step by step solution for the question and show calculations and use formulas.