Answer:
10
Step-by-step explanation:
3 pounds bc there is 5 triangles for 15 pounds of squares
Yes cause the tree is the only and best way to do it
Answer:
Algebra I believe
Step-by-step explanation:
Answer:
21.16
Step-by-step explanation:
Starting from the theory we have the following equation:

Using the data supplied in the exercise, we have subtracting the mean and dividing by the standard deviation:

solving for "c", knowing that fi is a tabulating value:

therefore the value of c is equal to 21.16