3. George will need $22 500 when he goes to college 5 years from now. She has 2 options for saving the money. Option A: A regular deposit at the end of each month into an account that earns 5.75% per year compounded monthly (2 Marks) Option B: A regular deposit at the end of each year into an account that earns 6.35% per year compounded annually (2 Marks) Which option should George choose? Make a recommendation, then justify it.

2. During a chemical reaction, the concentration of one of the reactants is measured over the time since the beginning of the reaction. Time (s) 20 25 30 35 40 Concentration (mmol/L) 7.0 3.7 2.0 1.0 0.5 a) What type of relationship seems to exist between time and concentration? Justify your answer.

1 6. The formula V= Tr²h gives the volume of a cone with radius r and height h. 3 a) Rearrange the formula to isolate r. b) Determine the radius of a cone with volume 14 m³ and height 5.3 m. c) Determine the height of a cone with volume 13 m³ and radius 1.6 m. Explain your strategy.