A triangular park has a walkway that is perpendicular to one of the sides of the park and divides that side into two equal parts, as represented by the diagram.
121 m
2x+1
3x
What is the perimeter of the park?

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?