Hey there!
Simplify the 
(the top part))
Then, simplify the 
(the bottom part, let's pretend it is multiplied by a(n) invisible 
))
Our answer is: 
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Answer:
4 because you divide 3 and 15 by three which gives you 5 then divide 20 by that gives you 4
Answer:
Thank you for the kind words!
Step-by-step explanation:
Answer:
36
Step-by-step explanation:
Angle BEC is a right angle. The total degree of a right angle is 90. So if you subtract 90 by 54, then you get the value of the remaining angle, which is 36.
Semiannual means there will be two total periods in a year. Divide ten percent by two to get the interest rate per period. Then multiple by 1+i twice
