Charles asked his teammates how many hours they practiced swimming during the week. He recorded his data in the table
below and used the shaded columns to calculate three sample means. What is the range of the values for the sample
means?
Hours of Swim Practice
ON
00
5

5

Step-by-step explanation:

This one is hard because I cant see the data table, but 5 makes the most sense *in my opinion*

The answer is B

Step-by-step explanation:

2

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

step-by-step explanation:

mean or average is 40.6