Final answer:
Angus mowed 30 yards in his neighborhood.
Step-by-step explanation:
To determine how many yards Angus mowed, we can subtract the amount of money he spent on gas from the total amount of money he had in his lawn cutting bank account. We then divide the remaining amount by the amount he earned for each lawn he mowed.
Step 1: Subtract the amount spent on gas from the total amount of money in Angus' account: $240 - $60 = $180
Step 2: Divide the remaining amount by the amount Angus earned for each lawn: $180 รท $6 = 30 yards
So, Angus mowed 30 yards in his neighborhood.