HELP ME PLEASEEE ITS I HAVE TO DO IT FAST PLEASEE

a) x and 2x are complementary angles.

b) x = 30

Step-by-step explanation:

x + 2x = 90 (Complementary angles)

3x = 90

x = 30

its 30

Step-by-step explanation:

there are 180 degrees in that shape. the right angle is 90 degrees. leaving only 90 for both x and 2x. if you do x times 2 using 30 as x you get 60. if you add 60 to x, and we are using 30 as x you get 90. therefore adding 90 and 90 you get 180 which is the total degrees of the shape.

i believe the answer is c.