Match the diaagramn please, thanks

A).

B).  y =

Step-by-step explanation:

Question (1)

A). If every block of the given figure represents ,

    Measure of x =

                           = 1

    Measure of y =

                          =

    Since,

    Therefore, there is a decrease of .

B). Measure of each box =

     y =

     x =

    y =

your answer is 23/2 - 13.5

step-by-step explanation:

7/2 evaluates to

multiply x and 4.5

multiply x and 1

the x just gets copied along.

the answer is x

x

4.5*x evaluates to 4.5x

multiply 3 and 4.5x

multiply 1 and x

the x just gets copied along.

x

4.5*x*3 evaluates to 13.5x

7/2-4.5*x*3 evaluates to

  + 8 =

the answer is

7/2-4.5*x*3+8 evaluates to