Which symbol replaces ? to make the statement true?

18divided by 6 + 3 ? 6+12 divided by3 a)< b)> c)=

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

Can somebody me out with this question

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?