An aviation fuel manufacturer sells two types of fuel A and B. Type A fuel is 25 % grade 1 gasoline, 25 % of grade 2 gasoline and 50 % of grade 3 gasoline. Type B fuel is 50 % of

grade 2 gasoline and 50 % of grade 3 gasoline. Available for production are 500 liters per

hour grade 1 and 200 liters per hour of grade 2 and grade 3 each. Costs are 60 paise per liter

for grade 1, 120 paise for grade 2 and100 paise for grade 3. Type A can be sold at Rs. 7.50

per liter and B can be sold at Rs. 9.00 per liter. How much of each fuel should be made and

sold to maximise the profit.

An appliance store sells lamps at $95.00 for two. a department store sells similar lamps at 5 for $250.00. which store sells at a better rate

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

The table below represents the displacement of a fish from its reef as a function of time: time (hours) x displacement from reef (feet) y 0 4 1 64 2 124 3 184 4 244 part a: what is the y-intercept of the function, and what does this tell you about the fish? (4 points) part b: calculate the average rate of change of the function represented by the table between x = 1 to x = 3 hours, and tell what the average rate represents. (4 points) part c: what would be the domain of the function if the fish continued to swim at this rate until it traveled 724 feet from the reef? (2 points)