What is the simplified value of the expression below?

3 (8 minus 4) + 2 times 5.5

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

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Ineed in figuring out this problem.