Nasa uses a launch clock to measure time before and after lift-off. it takes 2 hours and 15 minutes of preparations on base, 20 minutes to travel to the launch pad, and 40 minutes of pre-launch checks once in the spacecraft. when should the astronauts begin preparation? –3 hours 15 minutes, because all the preparation times add to 3 hours and 15 minutes –3 hours 35 minutes, because all the preparation times add to 3 hours and 35 minutes –2 hours 35 minutes, because all the preparation times add to 2 hours and 35 minutes –2 hours 15 minutes, because all the preparation times add to 2 hours and 15 minutes

The table shows the relationship between the number of cups of cereal and the number of cups of raisins in a cereal bar recipe: number of cups of cereal number of cups of raisins 8 2 12 3 16 4 molly plotted an equivalent ratio as shown on the grid below: a graph is shown. the title of the graph is cereal bars. the horizontal axis label is cereal in cups. the x-axis values are 0, 20, 40, 60, 80,100. the vertical axis label is raisins in cups. the y-axis values are 0, 10, 20, 30, 40, 50. a point is plotted on the ordered pair 40,20. which of these explains why the point molly plotted is incorrect? (a) if the number of cups of cereal is 40, then the number of cups of raisins will be10. (b)if the number of cups of raisins is 40, then the number of cups of cereal will be10. (c) if the number of cups of cereal is 40, then the number of cups of raisins will be 80. (d) if the number of cups of raisins is 40, then the number of cups of cereal will be 80.

How do i find the missing angle measure in a polygon

Sam is picking fruit from a basket that contains many different kinds of fruit. which set of events is independent?