Let a = {a, b, d, f, g} and b be a sets in the universe u = {letters of the alphabet}. if a ∩ b = {b, d}, which could be a set of b? (steps to solve problem too ? )

On a piece of paper, graph . then determine which answer choice matches the graph you drew

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

James adds two numbers a + b. sally adds the same two numbers but reverse the order b + a what property of addition assures us that james and sally will get the same sum