Jonny earns $10 for each day that he works at a lawcare service. He also earns $5 per lawn that he mows. On Monday, Jonny earned $30. Which equation could be used to find how many lawns Jonny mowed on Monday?
options
1) 4x + 5 = 30
2) 4x + 10 = 30
3) 5x + 10 = 30
4) 10x + 5 = 30
we have that
30=10+5x
therefore
answer is option 3