If the makeup rate on the cost of an outdoor gas grill is 30%, find the equivalent markup rate on the selling price. use the following formula to find the answer(remember that you may need to round to the third decimal place which is equivalent to rounding to one tenth of a percent.) mark up rate on selling price=markup rate cost/(1+ narkup rate on cost) a. 23.1% b. 86.7% c. 31.7% d. 72.9%

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.