A manufacturer claims that a new snowmaking machine can save money for ski resort owners. He states for a sample of 10 tons, the cost of making a ton of snow was $2.25. The average of the old machine was $2.62. The standard deviation of the sample was $1.05. At a=0.10, does the new machine save money?

Step-by-step explanation:

in the math equation 8 x 7 = 56, the 8 and the 7 are both factors of 56, since in this lesson we will use square tiles to figure out the factors of a whole find as many different arrays as you can, but follow one important rule: all the rows must have the i can make two rows of nine, so 2 and 9 are both factors of 18.

step-by-step explanation:

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72