N = ((n-1) + 4) + 4, to my understanding.
although your answers seem right written in the columns, but your method of applying numbers to equation seems incorrect in 'expand' column. for example, answer for 3 should be something like this...
3 21 17+4
4 25 21+4
hope it helps.
Answer:

To get the area of the quadrilateral to do see the 4 sides do all four side 7x7x7x7
Answer:
≈ 9.4 cm
Step-by-step explanation:
P(-4, -2), Q(4,3)
d= √(x2-x1)²+(y2-y1)²=√ (4+4)²+(3+2)²= √64+25 = √89 ≈ 9.4 cm
Time = Distance / Speed
= 80 mi / 45 mph
= 16 / 9 hours
= 1.778 hours.
1 crawdad/shrimp i believe