While on vacation, the jacobson family drove 312.8 miles the first day, 177.2 miles the second day, and 209 miles the third day. about how many miles did they travel in all?

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Solve 3x-18=2y and 5x-6y=6 by elimination show work

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 . reset next