5. Michael has a collection of 56 shells. If he gives away sof them, how many shells does he have left?
A. 21 shells
B. 35 shells
C. 11 shells
D. 7 shells

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Aright cylinder has a diameter of 8 m and a height of 6m. what is the volume of the cylinder

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