A pen cost half as much as a ruler. Write an expression to describe how much the pen cost, using r as the cost of the ruler.​

What are the values of , , m∠abd and m∠dbe in the given figure? explain or show your work

Two different linear functions are shown below with two points given from each function. use slope-intercept form or point-slope form to find the equation of each. linear function a points: (–5, –2), (–5, 7) linear function b points: (7, –5), (–2, –5) function a has: the equation of line a is: function b has: the equation of line b is:

The graph shown below expresses a radical function that can be written in the form f(x)=a(x+k)1/n+c what does the graph tell you about the value of n in this function