It’s d, looks like you got it already! With ratios, just pay attention to not only the numbers but order of the words as well, so you can be sure the ratio follows the problem.
There were 160 athletes at the meet.
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Answer:
-2/3 is greater than -0.8
Step-by-step explanation:
-2/3 when made into a decimal is about -0.67
This is greater than -0.8 because -0.67 covers less area when put into a visual.
Answer: 
Step-by-step explanation:
For this exercise you have to remember the Product of powers property, which states that:
Let be "x" the height in inches of a stack of
pennies.
You know that the thickness of 1 pennie is
, then, you can write the following proportion:

Solve for "x":

To express this height in Scientific notation the decimal point must be after the first digit, so you must move it one place to the left:

X = 0.882
y = 0.647
seems to be a good approximation of the solution.