Triangle R is 3 times triangle S. Triangle S is 3 times triangle T.
If triangle S = 1, what is the sum of the three triangles?

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.

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

How do you determine if an ordered pair is a solution to a given equation?