Answer: 4.41
Step-by-step explanation: So the little 2 on the top of 2.1, thats a 'power'
meaning that the number will be multiplied by itself
so if its 4 to the power 3 it would be 4x4x4
So 2.1 to the power of 2 is 2.1 x 2.1. this would equal to 4.41