Fill in the reason that justifies each step. Angle CDE and Angle EDF are supplementary. angles that form a linear pair are supplementary

m Angle CDE + m Angle EDF = 180 a. ?
x + (4x - 20) = 180 b. ?
5x - 20 = 180 c. ?
5x = 200 d. ?
x = 40 e.?

Which of the following lines is parallel to x=4? a- 3y=9 b- y=4 c- x=2 d- x=y answer this as soon as possible xoxo lo ; )

Aregular hexagon rotates counterclockwise about its center. it turns through angles greater than 0° and less than or equal to 360°. at how many different angles will the hexagon map onto itself?

Lv beethoven software supplies customized software to a managed healthcare system. lv beethoven software's costs for the software is $1,723,000. lv beethoven software sells the software to the healthcare system for $3,816,981.10. overhead expenses are estimated at 47% of the selling price. what is lv beethoven software's net profit to the nearest dollar?