If it takes 2 programmers 2 days to write
2 programs, how many programmers are
needed to write 20 programs in 20 days?

The radical equation 2+√2x-3 = √x+7 has a solution set [x= a0} and an extraneous root x = a1.

Pls! does anybody know a shortcut for answering these types of questions in the future?

Determine if the function below is continuous. a. continuous b. not continuous, 1 hole c. not continuous, > 2 holes d. not continuous, 2 holes