You pull two marbles out of a bag. After you pull out the first one, you do not put it back before you pull out the second one. These events are...
Independent
Not independent

not independent

Step-by-step explanation:

self explanatory

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

144.50

step-by-step explanation:

21.5 x 13.4=288.10 divide by 2