Translate the phrase into a math expression. 30 added to a number that is decreased by 5

a. n - 5 + 30

b. 30 - n - 5

c. 30 + 5 - n

d. 30 + (n : 5)

If you want to translate the phrase 30 added to a number that is decreased by 5 into a math expression, you can do it like this:

a number ... n

30 added ... + 30

decreased by 5 ... - 5

Now you just have to put this together: n + 30 - 5 or n - 5 + 30. So, the correct result is a.