Rectangle:
P = 2(L + W)
51.6 = 2 (L + 9.9)
L + 9.9 = 51.6 / 2
L + 9.9 = 25.8
L = 15.9
Answer
The length of the base = 15.9 feet
Answer:
d) 1.25 g
Step-by-step explanation:
If it has a half life of 40 days, there will be 5 half-lives in that span of time so if you divide 40 by 2, 5 times or just
, it will equal 1.25.





X^5 would be the answer i think.
Answer:
48
Because 12x4 is 48 and 48/4=12
Answer:
21
Step-by-step explanation:
2(2) +7
14+7
21