1. A spherical snowball is melting in such a way that its radius is decreasing at rate of 0.2 cm/min. At what rate is the volume of the snowball decreasing when the radius is 14 cm. (Note the answer is a positive number)
2. A company selling widgets has found that the number of items sold, x, depends upon the price, p at which they're sold, according the equation x=50000√5p+1
Due to inflation and increasing health benefit costs, the company has been increasing the price by $2 per month. Find the rate at which revenue is changing when the company is selling widgets at $260 each.