Answer: It expresses that the probability of those two independent events, is the product of the two individual probabilities.
D. 15:1
When you convert the 10 feet into inches the number will be 120 inches.
That’s 120:8
Divide by 8...
15:1
Quick Note: I'm pretty sure you meant 180LBS and not 1801bs, so I'm using 180, but if it was 1801 please tell me
Percent of change =

Substitute 180 for V2 and 160 for V1
Percent of change =

Solve
Percent of change =

Percent of change = 0.125 x 100
Percent of change = 12.5%
The type of reasoning that Vivian used into solving the
equation is the deductive. This type of reasoning is able to describe on how
the equation is done and this could be seen in the given scenario above as she
was able to show the steps in obtaining the correct answer.