Answer:
46 hours
Step-by-step explanation:
1. add all the hours you've worked (41+49+48+46=184)
2. divide the sum by the number of weeks (184/4=46)
from 2007 to 2012 is only 5 years, so we can see this as a compound interest with a rate of 1.2% per annum for 5 years, so
check attached file it has the answers
3x =-18
X= -12