I will brainliest the best answer Which cube is a unit cube?

1.a cube that is 7 feet long, 7 feet tall, and 7 feet high

2 .a cube that is 15 centimeters long, 15 centimeters wide, and 15 centimeters high

3.a cube that is 1 meter long, 1 meter wide, and 1 meter high

4.a cube that is 5 inches long, 5 inches wide, and 5 inches high

How much money does ron have left each month after his fixed expenses? ron graduated from college five years ago. he recently bought a house, but shares it with a housemate who pays him $800 a month for rent and utilities. ron is putting a budget worksheet together so he will have a better idea of where his money is going and where he can save. enlarge