Find the unit rate by dividing price by total units:
0.98 / 4 pints = 0.245 per pint
1.46/ 6 pints = 0.243 per pint
The 6 pint size has a lower price per point so it is the better deal.
Let's model the problem like a circle.
The circumference of a circle is given by:

Where,
r: radius of the circle.
Clearing the radius we have:

Then, replacing values we have:


Answer:
The best approximation for the radius of the tin is:

Answer:
The answer is a 21% increase.
Hope this helps!!
All the numbers follow a pattern of division by 2
Therefore the next number is 3/2 which is equal to 1.5