Please answer ❤ these are mathematics for geometry and need an answer asap

Create and solve a linear equation that represents the model, where squares and triangles are shown evenly balanced on a balance beam. assume the weight of a square is 1 unit and the weight of a triangle is unknown.

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

The functions f(x) and g(x) are shown in the graph f(x)=x^2 what is g(x) ?