Find the surface area of this sphere. Round to the nearest tenth.
10 cm
Formulas for Spheres
S. A. = 4tır?
V = Grer
[?] cm2

HELP!!

What is the number 321,000,000 in scientific notation? also what is the number? ?

Josh has a rewards card for a movie theater he receives 15 points for becoming a rewards card holder he earns 3.5 points for each visit to the movie theater he needs at least 55 points to earn a free movie ticket which inequality can josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket.

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%