HELP ASAP LINEAR EQUATIONS

Option (3)

Step-by-step explanation:

From the given figure,

where = nth term of an arithmetic sequence

= first term of the sequence

n = number of term

d = common difference

When n = 1 :

When n = 2 :

common difference 'd' = -6 - (-1) = -5

Formula for the nth term for the given sequence will be,

    = -1 - 5n + 5

= 4 - 5n

Now the 12th term of this sequence will be,

     = 4 - 60

     = -56

Therefore, Option (3) will be the answer.

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)

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".