A would be the correct answer because he is up in elevation so that makes the 1200 positive and he goes down 20.4 which is negative and is goes that far down!!
hope this helps
Answer:
x=8
Step-by-step explanation:
2x+9=3x+1
-3 -3
-9 -9
-1x=-8
divide both side by -1.
x=8
-0.005,-45,0.34,3,10,1000
Jenny is incorrect in her calculation.
For every time that Jenny's brother washed dishes, Jenny washed dishes 4 times. This tells that the the times they washed dishes occur in the ratio 4 :1. If Jenny's brother washed dishes 8 times, Jenny has to have washed dishes 
times. The way Jenny's is doing the calculation implies that his brother washed dishes 
times. He calculation yields a wrong result.
Make the question more clear i cant understand it :/ include all the information from the actual question to get the best answer.
