There are sixteen friends sharing 4 cupcakes. if they divide the cupcakes evenly so that they each get four pieces of a cupcakes, how many pieces do they need to cut each each cupcake into? pls me with this.

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