HELP ME PLEASE If f(x) = 2(x)² + 5√(x+2), complete the following statement:

The domain for f(x) is all real numbers greater than or equal to ___.

The sum of the first eight terms of an arithmetic progression is 9m + 14. the fifth term of the06 progression is 2m - 6, where m is a constant.given that the first term of the progression is 26,find the value of the common difference, d and thevalue of m.

Which is the focus of a parabola with equation y2=4x

Me d is also an option but i couldn't get it in the picture