I'll give you a question, please answer with step-by-step reasoning process.
The pet store can buy a goldfish for $.25 and sell it for $.75. The owner plans to use the profits from goldfish sales to buy a new tank, which costs $100. After one week, he is 45% short of the price. How many goldfish did he sell that week?

110
He is $45 short because 100 x.

45 = 45.

He earned $55 off goldfish because 100 - 45 = 55.

He makes $.

5 profit per goldfish because.

75 -.

25 =.

5.

He sold 110 goldfish that week because 55 /.

5 = 110.

.

The answer is 110