Can someone help me to answer this correctly, please, and explain it. Please answer these 2 questions, I don't have more money to buy more questions. These 2 questions are different.

1.a.

1.b.

The images below are also answers for the 2 questions below.

For the first question the answers are

For the second question the answers are

a. When 96.58 and 58.229 are multiplied, the answer should have Enter the answer with the correct number of digits. 96.5858.229= b. When 96.58 and 58.229 are added, the answer should have Enter the answer with the correct number of digits. 96.58+58.229= a. When 18.098 and 16.44 are divided, the answer should be based on Enter the answer with the correct number of digits. 18.09816.44= b. When 16.44 is subtracted from 18.098, the answer should be based on Enter the answer with the correct number of digits. 18.09816.44= 123456 decimal place(s) significant figure(s)