Lisa bought 3 packs of red bouncy balls and 2 packs of yellow bouncy balls. each package contained 7 bouncy balls. how many more red bouncy balls than yellow bouncy balls did lisa buy?

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

The rumpart family is building a new room onto their house. the width of the new room will be 16 feet. the length of the room will be 4% greater than the width. write an expression to find the length of the new room. what will be the area of this new room?

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16