Three of these pairs of quantities are related by direct variation. which pair is not? a. x = hours traveled at 60 miles per hour, and y = total distance traveled b. x = length of a rectangular table, in inches, and y = length of the table, in centimeters c. x = number of $1-off coupons used, and y = amount saved d. x = time it takes to travel 60 miles, and y = speed traveled

Agrocery store has 12 lb of trail mix that is 10% banana chips. the store's manager would like to add banana chips to bring the new mix up to 25% banana chips. write and solve a system of equations to find out how many pounds of banana chips manager needs to add.

Is it true or false i’m trying to pass this test so i can leave school

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.