To find the expressions for the current estimated population of Concord in terms of p, we need to use the percentage change -9%.

Using the second column, the expression for the current estimated population of Concord in terms of p is p. Using the third column, the expression for the current estimated population in terms of p is p - 0.09p = 0.91p.

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To figure out how many people are in Concord right now, we need to use the percentage change, which is a decrease of 9%.

By looking at the second column, the expression for the current estimated population of Concord can be written as p.

If we check the third column, we can say that the expression for the current estimated population in terms of p is p minus 0.09 times p, which simplifies to 0.91 times p.