The linear function y=-0.6x+45 models the percentage of men in a certain city, y, smoking cigarettes x years after 1985. Find the slope for the model. Then describe what this means in terms of the rate of change of male smokers in this city over time. m=?
The value of the function ? (increased or decreased) by ? per year after 1985.

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.

set the two equations for y equal to each other. solve for x. this will be the x-coordinate for the point of intersection. use this x-coordinate and plug it into either of the original equations for the lines and solve for y.

the answer will be 80.

-3n+2+5n-7=

2n+2-7=

2n-5 (d)