The area of the door is 16ft (4x4) and the window is 900 (30x30) then do 900/16= 56.25 I hope I'm right!
Answer:
k=7
Step-by-step explanation:
Add 15 to both sides, -8+15=7
So, K=7
Break the two denominators down to their primes.
9: 3 * 3
12:2 * 2 * 3
LCD: 2*2*3*3
LCD: 4 * 9
LCD:36
Answer: A. The value of his investment decreased by 16% during this time period.
Step-by-step explanation:
Here the initial amount = n
Final amount after 1 years = 0.84n
The total change in the initial amount = n - 0.84n = 0.16 n

= 
Thus, the amount is decreases by 16% in one year,
⇒ Option A is correct.