Sarah is playing a board game. Her score is -500 at the start of her turn and at the end of turn her score was -220. What was the change in SarahтАЩs score from the start of her turn to the end of her turn

The class wants to raise a total of $750.if they receive a profit of $1.25 from each candybar sold, how many bars must they sell to reachtheir goal

An assembly consists of two mechanical components. suppose that the probabilities that the first and second components meet specifications are 0.87 and 0.84. assume that the components are independent. determine the probability mass function of the number of components in the assembly that meet specifications. x

How do i do this activity, is appreciated