Answer:
a) 3n + 2 and b) multiply by 4 and add 5
Explanation:
a) 3 x n = 3n
3n + 2 = 3n + 2
b) You can see that the 4 has an x next to it, indicating that you need to multiply the x by 4. Then it also has "+ 5" so you also need to add 5 to the 4x. Finally, you get 4x + 5.
(x4, +5)