HELP ME PLZ IM SO STRESSED UGH IM CHOOSING BRAINLEST ONLY IF U GET IT RIGHT

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers

What is the sum of the geometric series in which a1 = 7, r = 3, and an = 1,701? hint: cap s sub n equals start fraction a sub one left parenthesis one minus r to the power of n end power right parenthesis over one minus r end fraction comma r ≠ 1, where a1 is the first term and r is the common ratio

The population in a city is modeled by the equation p(d)= 100,000*(1+0.3) where d is the number of decades since 1970