Repeat this on number 6.. all you have to follow is match up the sides and angles
I am pretty sure b. is right. This is because 87 is not prime
1 subtract 1 2m - 1 = 3m
<span>2 subtract 2 2m = 1 + m </span>
<span>3 subtract m m - 1 = 2 </span>
<span>4 add 2 + m = 3 </span>
<span>5 subtract 2m -2 + m = 1 </span>
<span>6 add 1 3 = 1 + m
1.5.
2.4
3.1
42
56
63</span>
The answer to this is C. 72