Martha is making a recipe that requires 2/5 of a cup of sugar. she only has 1/3 of a cup of sugar at home, though. what fraction of the recipe can martha make with the amount of sugar she has?

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x

Which representation has a constant of variation of -2.5