The mean of Hannah’s last 6 javelin throws is 161 feet. What is her mean absolute deviation? Last 6 throws: 149 ft, 153 ft, 159 ft, 166 ft, 167 ft, 170 ft

MAD = feet
please help

For the given quadratic equation convert into vertex form, find the vertex and find the value for x=6 y=-2x^2+2x+2

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.

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account