Answer:
46 yards
Explanation:
let x = number of lawns mowed per month
let y = number of full landscape maintenance service
y = 2x
100x + 130y = 8,280
100x + 260x = 8,280
360x = 8,280
x = 8,280 / 360 = 23
Melissa provides only lawn service to 23 yards and full landscape maintenance service to 46 yards.