Answer:
table C
Step-by-step explanation:
The constant of proportionality k= y/x
table C shows constant proportionality :
90/9=140/14=240/24=10
192.
2(8+4)÷2(8+8) = 1(4+8)×(8+8)
1×12×16=192.
Answer: The required product is 
Step-by-step explanation: We are to find the product f the following two algebraic expressions:

To find the product of the above two expressions, we must multiply each term of the first expression with each term of the second expression.
The multiplication is as follows:

Thus, the required product is 
87+87+81+86+89+83+89= 602. Divided by 7 because that’s how many numbers there were is 86 and that is your mean/average.