Question 944309
Let d= number deliveries
Plan A: $5+$0.75d
Plan B: $7+$0.25d
The Question is when does A=B
$5+$0.75d=$7+$0.25d Subtract $5 from each side
$0.75d=$2+$0.25d Subtract $0.25d from each side
$0.5d=$2  Divide each side by $0.5
d=($2/$0.5)=4 ANSWER You earn the same amount with either plan when you make 4 deliveries per hour.