Estimate decimals use a benchmark ; )

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

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length