The first term of a geometric sequence is 10,000 and the common ratio is 0.4. What
is the 9th term of the sequence?
A 0.65536
B 6.5536
C 16.38
D 40.96

How to write 3 tenths and 5 tenths as a decimal

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?