<u>Answer-</u>
<em>The estimated population in 2013 is </em><em>3081.</em>
<u>Solution-</u>
This can be represented as exponential decreasing function,

Where,
-
a = starting amount
- r = rate
- t = years
Putting the values,




As population can not be in fraction, so after rounding off the estimated population in 2013 is 3081.
The angles that form similarity are those that are vertically opposite and 2 pairs that are equal because the for a Z formation.
Since <LPM = <ONM then
Cross multiply
12*(5x - 10) = 16*(4x - 9) Remove the brackets on both sides.
60x - 120 = 64x - 144 Subtract 60x from both sides.
- 120 = 64x - 60x - 144
-120 = 4x - 144 Add 144 to both sides.
-120 + 144 = 4x
24 = 4x Divide by 4
24/4 = x
x = 6
C+3c is 4c and -4+9 is 5 so your answer is 4c+5
4/6=0,66=66% i think this is right?