You and a group of friends want to know how many students in your school prefer watching football. There are 820 students in your school.
Each person in the group randomly surveys 20 students. The table
shows the results. Use each sample to make an estimate for the number
of students in your school who prefer watching football.
Go
School
Son
You
Friend A
Friend
Friend
Friend D
Baseball
5
7
7
4
4
3
Favorite Sport to Watch
Basketball Football
4
9
3
7
2
5
Soccer
2
3
6
0
7
9
4
5
8
to jo thing
The number of students in your school who prefer watching football
using your sample is
Friend Als
Friend Bis
Friend C is
and Friend D
is
Dom
3
21

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".

17   x 256=4352

sorry if this is wrong, i'm new.

step-by-step explanation:

the easiest way to do these would be to solve the equations. if you can solve the equation than you can solve these problems.