To the nearest hundred, 400
Anything from 350 to 449
350
350
350
120 is the nearest cube: it is the cube of 1201/3 = approx 4.9324. What you probably wanted, but failed to ask for, was the nearest perfect cube. Then the answer is 125.
The nearest cubed number is 27 which is 33
If by cube you mean perfect cube (a cube of an integer), then no, and the nearest perfect cube is 81.
650
350
To the nearest hundred, 400
216, 343
Anything from 350 to 449
We will go by the process of elimination to solve this: it is rounded to the nearest ten and gets 350, so it has to be from 345-354. It is greater than 350, so it is 350-354. It is an even number, so it is either 350, 352 or 354. The ones digit is after 2, the answer is 354.
350
Technically, yes, but 11 is a prime number, therefore the cubic root of 11 will be expressed as a rational number. The cube root of 11 (rounded to the nearest thousandth) is 2.223
350