Please help me, people, all ways take my points without answering the question Which expression is equivalent to 18y+30?

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Which zero pair could be added to the function f(x) = x2 + 12x + 6 so that the function can be written in vertex form? o 3, -3o 6,629,-936, 36

Which statements are true about additional information for proving that the triangles are congruent check all that apply