Three triangles are shown. The measure of the exterior angle shown is represented by x in each triangle. Which of the following represents the correct order of the triangles from least to greatest, if the order is based on x?

R S T

T R S

T S R

S R T

Find the difference (8ab+a+2) - (3ab+6)

Damon makes 20 cups of lemonade by mixing lemon juice and water. the ratio of lemon juice to water is shown in the tape diagram. lemon juice\text{lemon juice} lemon juice water\text{water} water how much lemon juice did damon use in the lemonade? cups

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