Its B, Because, Present perfect progressive is when you say this, jake has been playing. Past is definitely not, and if past is not it than d wouldnt be it.
Answer:
The word you are looking for the smart as your answer.
Explanation:
This is a mnemonic to help us remember the key elements found in organisms: sulfur, phosphorus, oxygen, nitrogen, carbon, and hydrogen.
A) 416=80+4x
B) 416=80+4x
336=4x
84=x
Mr. Harrison can buy a maximum of 84 books for his new bookshelf.
