Since you do not want the variable y, you must eliminate 
Therefore, to eliminate it, you must have the opposite of it, making the answer 
Answer:
the total surface of the box is 486 cm 2
.......
Answer:
5.15625
Step-by-step explanation:
*Multiply the bottom and add the top
*Then divide the top number by the bottom using a calculator to get a decimal.
Product means to multiply. Integers are whole numbers, so the process would be to multiply the numbers.
sum of the cube of a number and 27:
x^3 + 27