Can someone Please help explain this geometry question for me.

Cherie measures and records the lengths and sizes of the same style of a sandal found at a shoe store. which equation can be used to determine the approximate shoe size, s, for a foot length of x inches? s = x – 2 s = 2x – 10 s = x + 6 s = 2x + 4

For what values of x is x2 + 2x = 24 true?

Which of the following values are in the range of the function graphed below? check all that apply ! - will give the answer "brainliest! "