What is the are of the height of the parallelogram is 1 1/2 times its base, the base is 6

Solve 2x+y=3 x+y=5 in substitution method

Si la base de un triángulo isósceles mide 70 m y el ángulo opuesto a ésta mide 58°; entonces ¿cuánto mide la altura de dicho triángulo? a) 21.87 m. b) 40.01 m. c) 43.74 m. d) 63.14 m.

Which system of linear inequalities is represented by the graph?