These are the means and standard deviations for samples of prices from two different brands of shoes.
Brand
Mean: $50
Standard deviation: $5
Brand B
Mean: $40
Standard deviation: $8
Select the two true statements.
A. Brand A has a lower average price than brand B.
B. Brand A has a higher average price than hand B.
C. Brand A's prices are less spread out than brand B's prices.
D. Brand A's prices are more spread out than brand B's prices.

The first thing you must do is to calculate the weight of the gravel (w) that the truck holds (7.5 yards³). So, you have:

 If the weight of 1 yard³ is 1.48 tons, then the weight of 7.5 yards³ is:

 w=7.5x1.48 tons
 w=11.1 tons

 The problem says that the gravel will be placed in containers that each hold 3.7 tons of gravel,so, If they need 1 cotainer to place 3.7 tons, how many containers they need to place 11.1 tons?

 1 container3.7 tons of gravel
                 x11.1 tons of gravel

 x=(11.1x1)/3.7
 x=11.1/3.7
 x=3 containers

 How many containers of this size are needed to hold all the gravel from one truck?

 The answer is: 3 containers.