The cost of a pencil at the school store is $0.52. Which student provides the best estimate for the cost of 4 pencils? Cora. 52 cents is about 50 cents. 4 plus 50 cents equals 4 dollars and 50 cents. Isaiah. 52 cents is about 50 cents. 4 times 50 cents equals 2 dollars. Rebea. 4 pencils is about 10 pencils. 10 plus 52 cents equals 10 dollars and 52 cents. Yolana. 4 pencils is about 10 pencils. 10 times 52 cents equals 5 dollars and 20 cents.

Cora
Isaiah
Rebecca
Yolanda

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.