A cell phone company offers its customers two monthly plans. Plan A costs $20 per month plus $0.15 for each minute used. Plan B costs $15 per month plus $0.20 for each minute used.
Part A
Write equations to represent the cost of each plan.
Plan A
Plan B
Part B
Graph the equations
Part C
For how many minutes is the cost the same?
Show your work.

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

9.4.34  question   to estimate the height of a stone  figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the  square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a  meter?