Hey, I'm going to be using all my points on this one but can someone help me solve these? I'm having a rough time. It'd be greatly appriciated.

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

Which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust?

Determine if each number is a whole number, integer, or rational number. include all sets to which each number belongs. 4. -12. 5. 7/8