Hello there,
First off what is scientific notation?
Scientific Notation is<span> the way that scientist handle very large or very small numbers..
</span>for example, instead of writing 0.0000000056 we write 5.6x10 (exponent -9)
So, now we got that out the way lets look up here at the choices....
I would say that 7.8x10 (exponent -5) would be the answer! :)
I hoped this helped!!!! :)))
God bless you.
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Answer:
39,900
Step-by-step explanation:
original cost 100*399 = 39,900
At the beginning, you begin with one whole that's been split into 25 pieces, or 25ths. Before you cover any of them up, you still have all 25, so you have 25 25ths, or, as a fraction,

. Next, you take away 3 of those 25ths, or

, which leaves you with

, or

.
account 1:
$400 * 0.035 * 2 = $28
$28 interest earned so total = $400 + $28 = $428
account 2:
<span>A = P(1+r/n)^(nt)</span>
= $250(1+0.035)^2 = 267.50
total account 1 and account 2 =
$428 + $267.81 = $695.50
answer is B $695.00