Have you ever blown across a bottle's top and made a pleasant, resonant sound?

Meritocracy is the belief that hard work and achievement a: can reduce a persons position in society b: can change a persons position in society for the better c: has little influence on a persons social standing d: can decrease social inequality

Margaret, a vegetarian, is looking for a mushroom with a meaty texture to grill and eat instead of a hamburger. which of the following mushrooms would you recommend?                 a.  lobster      b.  matsutake      c.  shiitake      d.  portobello

If a(x) and b(x) are linear functions with one variable, which of the following expressions produces a quadratic function? (ab)(x) (a – b)(x) (a + b)(x)