Please help me with these three questions, before my parents come home pls 50 points



Answer:
24.04
Step-by-step explanation: Because 1 is not a decimal, it goes on the left side of 23.04. So 23 + 1 is 24. So 24.04
23.04
+ 1.00
-------------
24.04
1. 143.11
+ 23.04
----------------- add each number together example 4 +1 = 5, 0 +1 = 1
166.15
2. 24.6
- 17. 2
------------ subtract each numbers together 6-2 = 4 and 24-17 is 7
7.4
3. 708.00 subtract the numbers together
- 22. 08
------------------
685.92