Which of the following sets is closed under subtraction?
o integers
o whole numbers
natural numbers
o irrational numbers

What number must you add to complete the square x^2+12x=16

1. what expression would be the same as 6x+x+0 2. find the prime factorization of 60 3. write the expression for 6 + x in words.

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.