Determine if there is a proportional relationship between the two quantities

The table a not represent a proportional relationship between the two quantities

The table b represent a proportional relationship between the two quantities

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or

Verify each table

Table a

Let

A ----> the independent variable or input value

B ----> the dependent variable or output value

the value of k will be

For A=35, B=92 --->

For A=23, B=80 --->

the values of k are different

therefore

There is no proportional relationship between the two quantities

Table b

Let

C ----> the independent variable or input value

D ----> the dependent variable or output value

the value of k will be

For C=20, D=8 --->

For C=12.5, D=5 --->

the values of k are equal

therefore

There is a proportional relationship between the two quantities

The linear equation is equal to

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm

step-by-step explanation:

is their an equation anywhere i can take a   look at it and see if i am right.