A. rolling a standard die B. picking one of four unique cards C. a random number generator is used to select a whole number between 1 and 4 inclusive D. flipping two coins E. drawing a card from a deck
All are examples of a chance experiment with four possible outcomes.
Ok so first I am assuming you ment 2 sevenths so 12 divided by 2 sevenths is 42. so the father is currently 42. so when she was 10 he was 40. since 10 is 4 times 40 that is the age we need. so 42 minus 40 is 2. therefore the answer is 2.