What is the area of the given circle in terms of pi.

Ineed solving this problem h/8=-25 solve for h idk how to this can someone show me and also give an answer you

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.

100 points, hi, i’m not sure what to do here,the data doesn’t seem to be quadratic .? can anyone me, in advance