Answer:
A. 
B. 42.4 inches. It will fit.
Step-by-step explanation:
A.
Let s = the length of the diagonal across the bottom of the box.

Therefore, 
B.
Let r = the length from a bottom corner to the opposite top corner.

Therefore, the length of the longest tube that will fit in the box is 42.4 inches.
Since the fishing rod is only 42 inches long, which is less than 42.4 inches, by only 0.2 inches, it means it will still fit.
Answer:
Step-by-step explanation:
4A Area is 40. The area is the length times the width giving you an answer of 40 sq in.
4A Perimeter is is 2L+2W. Multiply the length by 2 then the width by two and add them together this gives you 8+20 which is 28 inches.
Answer:
He needs to run 7 miles per day. 217/31 = 7m
Step-by-step explanation:
CosA=(21^2+23^2-25^2)/2*21*23
cosA=345/966
A=cos^-1(345/966)
A=69.08