Jonah is going to the store to buy candles. small candles cost $3.50 and large candles cost$5.00. he needs to buy at least 20 candles, and he can spend no more than $80.

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

If you could answer these your a life saver

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?