The perimeter of a trapezoid is 39a-7. three sides have the following length: 9a,5a+1, and 17a-6. what is the length of the forth side?

Fiona and her friends are playing a game by guessing where a coin will land when it is randomly dropped inside the square shown below. fiona guesses that the coin is likely to land in the blue area. which explains whether or not fiona is correct and why?

Find the slope of a line given the following two points

Based on the graph, what is the initial value of the linear relationship? a coordinate plane is shown. a line passes through the y-axis at -2 and the x-axis at 3.