It would round out to about $329.19.
Answer:
1) 
2) 
3) 
4) 
5) 
Step-by-step explanation:
1) Convert mixed numbers to decimal numbers dividing the numerator by the denominator and adding the result to Whole number part:

The unit rate is:

2) Divide 2,857 points by 1,487 games:

3) Divide 255 strikeouts by 204 innings:

4) Divide 15 errors by 1,000,000 pieces:

5) Divide 5,979 points by 179 career playoff games:

The answer is 1 bag.
First, watch out, the units are different! Next, let's first calculate a volume of a box.
The volume (V) of the rectangular box is:
V = l × w × h
(l - length, w - width, h - height)
It is given:
l = 7 feet = 84 inches
w = 9 inches
h = 6 inches
Therefore,
V = 84 · 9 · 6 = 4.536 in³
We know that each bag of manure contains 2.625 cubic feet of manure.
2.625 ft³ = 4536 in³
Now, make a proportion:
If 1 bag contains 4536 cubic inches of manure, how many bags will fill the box of 4536 cubic inches:
1 : 4536 = x : 4536
⇒ x = 4536 * 1 / 4536 = 1
Therefore, only 1 bag of manure will fill the box completely.