Total amount of money received by David for working at his father's store = $50 Amount of money spent by David at the movies = $20 Amount of money spent by David buying comics books = $10 Amount of money spent by David buying candy = $5 Then Total amount spent by David = (20 + 10 + 5) dollars = 35 dollars Amount of money saved by David = (50 - 35 ) dollars = 15 dollars So The ratio of the amount of money David spent to the amount of money David saved = 35:15 = 7:3 So the ratio of the amount of money David spent to the amount of money David saved is 7:3