Answer: Tanya started with 500 sheets of paper. (16 x 30) + 20 = 500 is the solved equation. 20 + 16 x 30 = S
(S=sheets of paper)
Step-by-step explanation: You can solve this by multiplying the number of papers per handbook by the number of handbooks. There were 30 handbooks, with 16 papers in each. 16 x 30 = 480. Then, Tanya had 20 papers left over. 480 + 20 = 500. In all, Tanya started with 500 sheets of paper.
Hope this helped!
-Finn