Give the equation of a line that is perpendicular to the line y= -4/5x+8

Classify the polygon by its number of sides. state whether the polygon appears to be regular or not regular. a.heptagon, regular b. heptagon, not regular c. octagon, regular d. octagon, not regular

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?