Center (-1, 3) and tangent to the line y=2

Tracy solved the following problem. which of the statements is true? 9 ÷ 3 + 6 × 2 3 + 6 × 2 9 × 2 18 her answer is correct. her answer is incorrect. she should have multiplied before dividing. her answer is incorrect. she should have multiplied before adding. her answer is incorrect. she should have added before dividing.

Consider the diagram. which line segment has the same measure as st? rx tx sr xs

Anyone know? is appreciated! will mark brainliest if correct!