Your school is setting up a row of 5 tables for a craft fair. each table is 72 inches long. the space between each pair of neighboring tables must be 48 inches. write and evaluate an expression to find the length of the space needed for the tables from the beginning of the first table to the end of the last table.

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is