Which of the following expressions represents "the sum of n and the sum of 8 and 6"?
(n + 6)8
n + (8 + 6)
n(8 + 6)

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.