The table shows the battery life of four different mobile phones. mobile phone battery life phone battery life (hours) a 20 b 25 c 10 d 18 if 6.45% of the battery life of each mobile phone is used in a day by a typical user, for which mobile phone is 0.775 hour of battery life used in a day? phone a phone b phone c phone d

B

Step-by-step explanation:

I just took the test AND I GOT IT RIGHT please choose this <3

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".

.25

step-by-step explanation: