Adrian's sister took 15 marbles out of a bag and then gave the rest to her brother. the bag her brother received had 35 marbles in it. how many marbles were in the bag to begin with? solve this equation: n - 15 = 35

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.

If you measured the width of a window in inches and then in feet with measurement would you have the greater number of units

The graph shows the amount of total rainfall at each hour what was the total rainfall amount after three hours