Answer:

Step-by-step explanation:
Given

Required
Write as sum or difference
Using addition law of logarithm, the equation becomes:

Expand

Apply addition law

Answer: 65 inches
Step-by-step explanation:
Use Pythagoras equation: c²=a²+b²
c²=a²+b²
c²=3136 +1089
c=√4225
c=65 inches
The answer would be B, because 12.80 times .15 is 1.92
3,680 sq. in.
(36*20)*4= 2880
(20*20)*2= 800