While walking in his backyard, cooper found a rock. He decided to investigate what the inside of the rock looked like, so he used a hammer and broke thr rock into two parts. The entire rock before it was broken had a mass of 20 grams. After he broke the rock the smaller piece had a mass of 5 grams. What must the mass of the larger piece of rock be? I need the answer ASAP!!!

What form of government is powers of states?

Why did countries not allow jewish refugees asylum?

Javier is considering two options for college. option a: complete the first two years of schooling at a community college and then transfer to a university. option b: complete all four years of schooling at the university. community college financial analysis costs per year financial aid package per year tuition & fees scholarships & grants $3,000 $1,000 room & board $1,000 university financial analysis costs per year financial aid package per year tuition & fees scholarships & grants $10,000 $15,000 room & board work-study $11,500 $4,000 which statement about the cost of the options is true? option b will save him $1,000. option b will save him $2,000. option a will save him $14,000. option a will save him $17,500.