Dans une enquête auprès de personnes qui achètent des glaces dans un café, 4 0 % ont déclaré aimer la glace à la fraise et 6 0 % ont déclaré préférer la glace à la pistache. L'enquête a montré que 8 0 % aimaient la fraise ou la pistache, ou les deux saveurs. Quel est le pourcentage de personnes préférant les deux saveurs ? Quel est le pourcentage de personnes n'aimant que la glace à la fraise ?​

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper. what is the area of the paper that is left ? use 3.14 for pi

In which form is the following function written? y = - 2(x – 3)(x + 5)

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.