Answer:
You use the order of operations and divide first, 16 by 4 which is 4, then you go on to add, 10+4=14+5+9=28 that is your answer. Sorry if I got it wrong but I am pretty sure I got it right
Step-by-step explanation:
By PEMDAS (or any alternative), <em>the first step should be to divide</em>, as D comes before A. So, 16 ÷ 4.
850