Answer:
he can make 8 piles before he runs out and has 2 cards leftover
Step-by-step explanation:
In order to round a number to the nearest thousandths, we have to check the number in the ten thousandths place:
1- If the number in the ten thousandths is less than 5, then the thousandths number will remain the same and all numbers after it will be converted to zeroes.
2- If the number in the ten thousandths is equal to or greater than 5, then the thousandths number will be incremented by 1 and all numbers after it will be converted to zeroes.
Applying this to the given number:
<span>1.80431
</span>The number in the ten thousandths position is 3 which is less than 5.
Therefore, rounding <span>1.80431 to the nearest thousandths will be:
</span>1.80400 which is equivalent to 1.804
The midpoint formula is basically just the average of the two points. Here it is:

Then, you plug the points in. The answer is (-13,-5/2) or
C
The slope of the line is 2 = m. We can choose a coordinate pair and then plug that into the point-slope formula which is...
y - y1 = m(x - x1)
y - 3 = 2(x - 2)
Anyways, you could simplify more but the answer is C.
Good luck!