I really need help you’ll get 35 points if u get it right

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

The function f(x) = 14,600(1.1)* represents the population of a town x years after it was established. what was the original population of the town?

Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.