Answer:
Population of monkeys after 2 years = 3200
Step-by-step explanation:
Total number of monkeys at the start = 2975
Increase ratio of monkey population one year = 
∴ New population of monkeys after 1 year= 
Decrease ratio the next year = 
∴ Population of monkeys after 2 years= 
I think that your answer would be B) lines that meet at a 90 degree angle. These lines must intersect, and they have slopes that are opposite reciprocals when compared to each other.
-x + 1/2 = x + 4 1/2
+x +x
1/2 = 2x + 4 1/2
-4 1/2 - 4 1/2
-4 = 2x
x = -2
We know that
the scale (cm/feet)-----------> 1/2
1 in-------------> 2.54 cm
x in---------------> 1 cm
X=1/2.54------> 0.3937 in
so
the new scale (in/feet)------------> 0.3937 in/ 2 feet-------> 0.1969 in/feet
the answer is
0.1969 in/feet
