How do you work out the sum 8.54 divided by 62

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.

What is the point slope form of a line with slope -5 that contains point (2,-1)

X^2/100+y^2/25=1 the length of the major axis is: a)5 b)10 c)20