Please please help please please help please please help please please help please please help Boris starts to use the standard algorithm to solve 86\times986×986, times, 9. His work is shown below.

\begin{aligned} \overset{\blueD{y}}8\overset{}6& ;\\ \underline{{} \times \phantom{~} 9}&\\ 4& \end{aligned}

5

Step-by-step explanation:

You have to do 6×9 first and since that is a two digit number (gives 54), you have to bring the 5 up to the top in the place of y and add that to the product of the next two numbers you multiply.

definitely a. the others have almost all data points on one side of the line.

step-by-step explanation: