3 apples and a bunch of banana cost #4180 find the price each of an apple and a bunch of banana​

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*

The tile along the edge of a triangular community pool needs to be replaced? ?

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