conversations.from: human
conversations.value: Can you provide an in-depth solution for: Mo is buying valentine's day cards for the class. There are 30 students and he wants to give a Valentine to 60% of them. They cost $2 each. If he has $40, what percentage of his money will he spend on Valentine?Hey there, could you help me solve this math problem: Mo is buying valentine's day cards for the class. There are 30 students and he wants to give a Valentine to 60% of them. They cost $2 each. If he has $40, what percentage of his money will he spend on Valentine?
conversations.from: assistant
conversations.value: He needs 18 valentine's cards because 30 x .6 = 18
  He will spend $36 on these because 18 x 2 = 36
  The proportion of his income spent is .9 because 36 / 40 = .9
  This is 90% of his income because .9 x 100 = 90