If a sphere has a radius of 2 cm, what is the approximate surface area of the sphere?
a. 12.1 cm
b. 33.5 cm
c. 50.3 cm
d. 100.5 cm

There are a total sales of 2,000 dollars on monday on tuesday sales dropped 10% on wednesday sales dropped another 20% compared with tuesday from wednesday to thursday sales increases by an equal amount to 25% of monday total sales what is the net change in dollars on total sales from monday to tuesday