Amaps key shows that every of 5 inches on the map represents 200 miles of actual distance. suppose the distance between 2 cities on the map are 7 inches long. what is the actual distance between the two cities. write the rule you used to find the actual distance

What is the difference between the predicted value and the actual value

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.

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)