2.43 + 1.62 + 124.77 = 178.82 Because all you have to do is add up all the numbers (Don't take the decimals out, leave them in) And then you get: 178.82.
Hope I helped!
- Amber
Answer:

Step-by-step explanation:







6b-18c+18x is simplified for you
3,190,000 is 319 x 10^5 in scientific notation