Janis is saving money to buy a guitar that cost $420. She already has $150.00 saved and can earn the rest of the money by dog walking for 30 days. If d represents how much she earns for dog walking each day, which of the following equations can be solved to find how much Janis is paid each day for dog walking?

Question

Janis is saving money to buy a guitar that cost $420. She already has $150.00 saved and can earn the rest of the money by dog walking for 30 days. If d represents how much she earns for dog walking each day, which of the following equations can be solved to find how much Janis is paid each day for dog walking?
	420 + 150 = 30d
	420 – d = 150
	420 = 30d + 150
	420 = 30d – 150

GPT 3.5 · Answer

420 = 30d + 150