Ireally need (math) "and its a pic"

Which sentence uses an objective tone? we will plant the best garden of any school in the area. the new campus garden will surely be envied by other schools. a garden would provide numerous benefits to the students. you will probably agree that gardens have many benefits.

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

Find the domain of the following expression: 1/(√x)-2