Answer:
1) It is the trickiest door to open
Step-by-step explanation:
5.01 FLVS
That is C. my fellow brainy hope you get an A+
*Use the Pythagorean Theorem
a^2 + b^2 = c^2
6^2 + 5^2 - c^2
36 + 25 = c^2
61 = c^2 *Square root 61
c^2 (c squared) = about 7.8
[6.2x10^7]x[3x10^2]
=1.86x10^10
The hint is in the question. All you do is times the projection in 2030 with 1950 population.