PLEASE HELPP ASAP A chain fits tightly around two gears as shown. What is the radius of the smaller gear?Round your answer to the nearest tenth.

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.

Can someone me out here and the tell me the greatest common factor

The square root of 9x plus 7 plus the square rot of 2x equall to 7