The radius,
r
, of a sphere is
5.8m
. calculate the sphere's volume,
v
.
use the value
3.14
for
π
, and round your answer to the nearest tenth.

Abank manager wants to encourage new customers to open accounts with principals of at least $2,500. he decides to make a poster advertising a simple interest rate of 3%. what must the principal be if the bank manager also wants to advertise that one can earn $10 the first month? can the poster correctly say, "open an account of $2 comma 500 and earn at least $10 interest in 1 month! "?