It is asking for the length of that leg of the triangle. You would use the Pythagorean theorem. So 11^2+12^2=c^2. The answer is he square root of 265.
X2 = y
i believe :)
hope this helped!
Answer:

Step-by-step explanation:
current value is $30
as it increases at a rate of 5% each year
after n year the value will be 
so for 20 years it will be 
it gives 79.59893 so we can round it to 79.60
5y + 3 > -7 + 13
First add -7 + 13 = 6
5y + 3 > 6
Subtract 3 from both sides
5y + 3 -3 > 6 - 3
5y > 3
Divide both sides by 5
5y/5 > 3/5
y > 3/5