I am so lonel and singllleee lol

What is the missing reason in step 5? linear pair postulategivendefinition of complementary anglescongruent complements theorem

The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?