A rectangular poster is 3 times as long as it is wide. A rectangular banner is 5 times as long the banner and the poster have perimeters 24 inches. What are the lengths and of widths of the poster and the banner?

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3

Ihave trouble finding the nth term of a linear sequence

The length of a shadow of the building is 36m. the length of the pole, which is perpendicular to the ground, is 1.9m. the length of the pole's shadow is 1.52m. what is the height of the building?