Awoman bought a horse for $800 and then sold it for $900. she bought it back for $400 and then sold it again for $600. how much did she gain or lose on these transactions?

Evaluate cos2θ for cosθ = square root of 3/2

Which of the following statements is a true conclusion that can be made from the scaled bargraph?

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