18·8.7= 156.6
23·56.1= 1290.3
47·5.92=278.24
I think this should be the answer!!

the equation is a quadratic one, and it has a positive coefficient on the leading term, meaning, is opening upwards, so it has a "burrow" for the vertex.
the minimum or lowest point for a quadratic opening upwards is, well, the vertex point :), the "x" value is the year, the "y" or f(x) value is the population, we're asked for the year, or the x-coordinate of the vertex
well
Answer:
12
Step-by-step explanation:
6 * 5 is 30 6*2 is 12
Answer:
A. similar - AA
there's two corresponding angle that are equal!