Rafael does a weekly exercise program consisting of cardiovascular work and weight training. Each week, he exercises for at least 5 hours. He spends at most 3 hours doing cardiovascular work. He spends at most 12 hours on weight training. Let r denote the time (in hours) that Rafael spends doing
cardiovascular work. Let y denote the time (in hours) that he spends on weight training. Shade the region corresponding to all values of r and y that
satisfy these requirements.

Determine the fraction of total interest owed. after the fourth month of a 12-month loan: the numerator is: {(n + ) + (n + ) + (n + ) + (n + )} = , and the denominator is: {(n) + (n + 1) + + (n + )} = . therefore, the fraction is numerator/denominator (to the nearest tenth) =

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.

Need solving this 2nd limit problem.