Answer:
Step-by-step explanation:
5p + 2(p + 4) .......because pencil cases (p) sell for 5 bucks a piece....and mechanical pencils (p + 4), sell for 2 bucks a piece. She is basically selling 4 more mechanical pencils then she is pencil cases.
B I think I don’t really know
Answer:
2x-7
Step-by-step explanation:
Put this into a scientific calculator
1/3 x pi x 18 squared x 16