Answer:A
Step-by-step explanation:You know that t is unknown, so you put that at the left of your equation since that is what you are trying to find out. You know that d is the number of ours and that Toshma is making 15 dollars per hour so you can put 15d and since she already earned 35 dollars for her birthday money, you can just add 35 dollars to the right side of the equation
