If you were a biologist counting very large numbers of cells as part of your research get several reasons why you like that for to record yourself pounds in scientific notation said of standard notation

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

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logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.