Tina had $47.10 in her bank account on Monday. She withdrew $25 on Monday and also made a deposit of an amount d that she cannot remember. Tina had $97.43 in her account on Tuesday. Which equation can be used to solve for d, the amount she deposited on Monday?

a. 47.10 - 25+d = 97.43

b. 47.10 - 25 - d = 97.43

c. 47.10+25 - d = 97.43

d. 47.10+25+d = 97.43

The correct answer is a. 47.10 - 25 + d = 97.43.

This is because you have to subtract the $25, because it is a withdrawal, or taking out of money.

This rules out options C and D.

Also, Tina made a deposit of an amount that she can't remember. A deposit is adding a certain amount of money, so you have to + d.

This rules out option B.

The only option left is option A, which makes complete sense.