The sum of two numbers is 12. The first number, x, is twice the second number, y. Which system of equations could be used to find the two numbers?

A system of equations. x plus y equals 12. x equals 2 plus y.
A system of equations. x plus y equals 12. x equals 2 y.
A system of equations. x y equals 12. x equals 2 plus y.
A system of equations. x y equals 12. x equals 2 y.

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm

60.9774

step-by-step explanation:

because when you add 47.6 plus 7.32 equals 54.92

and when you add .0574 + 6= 6.0574

and when you add 54.92 and 6.0574 you get the answer of 60.9774.

plzz mark brainlest last one got deleted. cause i didn't explain it but i did but i understand what the mod meant

ome people is not even worth it to even try it in the air.

step-by-step explanation: