This is an arithmetic series with common difference 6
S13 = (13/2)[2*-5 + (13-1)*6)] = 403
Answer:
a=c
Step-by-step explanation:
because b=c don't match in any terms
8 ft.... since square is equal on all sides and perimeter is adding up all sides you would divide 32/4 which gets you 8
Answer is 35/7=5
The width is 5 miles long
