Don’t mind my answers that I erased but please do all of the questions

EXPLANATION
Rounding the decimals give us the follownig expressions:
2. 3.004 to to the nearest whole number give us 3
3. 943. 492 to the nearest tenth ---> 943.5
4. 1.209 to the nearest hundreth --> 1.21
5. 40.489 to the nearest whole number --> 40