In the exponential function given below, identify the initial amount and the growth rate.
y = 250(1 + 0.2)^t
initial amount: 250
growth rate: 0.2
200
Can you simplify x^2 times y^2?
Yes; see board
200
#2
20(a^5)(b^4)
200
If you don't wash your hands after going to the bathroom, you have approximately 2 x 10^8 bacteria on one hand. Show that number in standard notation just so you know how gross that is.
200,000,000
(And remember what kind of bacteria that is...)