The answer is 20. Tell me if you need to know how I got it.
Answer:
The brother is 36 years old.
Step-by-step explanation:
b = brothers age
b - 18 = 18 | Given
b = 36 | Add 18 to both sides to cancel out -18 and get his age.
Answer: y = 340000*(1.094)^t
This is the same as writing
======================================================
Explanation:
The answer above is in the form y = a*b^t
a = 340,000 = initial population
b = 1.094 = 1 + 0.094 = growth factor
Think of the growth factor as 100% + 9.4% = 109.4%
Step-by-step explanation:
there are actually no restrictions. even with a negative x, squaring it makes for a positive result.