also need help with the part where it says the answer should be based on... options are how many decimal places or significant figures.

a. When 64.4 and 63.71 are divided, the answer should be based on Enter the answer with the correct number of digits. 64.463.71= b. When 63.71 is subtracted from 64.4, the answer should be based on Enter the answer with the correct number of digits. 64.463.71=