Posted by Phil on Tuesday, January 1, 2013 at 2:11pm.
What is the value of 3a when a = `4.
(Thank you in advance & Happy New Year!)

Algebra  Reiny, Tuesday, January 1, 2013 at 4:07pm
For your 3 questions, just substitute the given value in each case
here ....
3a
= 3(4)
= 12