What is the sum of -7/18 and -3/6 a.) -4/9 b.) - 8/9 c.) 4/9 d.) 8/9

50 ! pls ! 12.  building codes regulate the steepness of stairs. homes must have steps that are at least 13 inches wide for each 8 inches that they rise.

a. discuss how to find the slope of the stairs.
b. describe how changing the width or height affects the steepness of the stairs.

Which of the following graphs could represent a quartic function?

Solve for x where 0 equation: cot^2x+2cotx+1=0