(7 1 3 6), (9 1 7 8), (6 1 0 4), (5 1 2 ? )

And employees salary increase by $4500 which represents a 15% raise what is the employees new salary

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.

How can (square root of 25) ^2 be rewritten?