400
Peter earns money for mowing lawns during 4 months. month 1 he earned $1,312, month 2 he earned $ 1,893, month 3 he earned $1,949 and month 4 he earned 1,384. About how much did he earn in 4 months?
a) $4,000
b) $6,000
c) $8,000
d) $5,000
What is (b) $6,000?