F(x)= 21x^2-2x +6, what's the 8th term of sequence? need answers to these problems

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!

Elizabeth claims that the fourth root of 2 can be expressed as 2^m since (2^m)^n = 2. find the values of m and n for the case where elizabeth's claim is true.

Amayoral candidate would like to know her residents’ views on a public open space before the mayoral debates. she asks only the people in her office. her co-workers are an example of a census population convenience sample simple random sample