121
To the nearest ten, 120 To the nearest hundred, 100
121 rounded to the nearest 10 is 120 .
You round it down to 100, as the 2 for tens must be rounded down.
200
100.
120
Finding 18 percent of a number is the same as multiplying the number by 0.18. In this instance, 0.18 x 121 = 21.78. Rounded to the nearest tenth, this is equal to 21.8.
120
121 is 11 to the second power 361 is 19 to the second power 576 is 24 to the second power 1000 does not belong because no number to the second power = 1000
121
100