Problem
4) Stacy is thinking of a number, which she calls \( n \). She triples it and then adds 10. (1)) Write an expression to represent Stacy's final number. \[ 3 n+10 \] (1) What is Stacy's final number in her starting number is 12? \[ 3 n+10=3(?)+10 \]
Solution
Step 1 ：\(3n+10 = 3(12) + 10\)
Step 2 ：\(= 36 + 10 \)
Step 3 ：\(= 46\)
