Can someone help me with the last two questions?

2) x = 2

3) x = 40

Step-by-step explanation:

Complementary angles add up to 90° and supplementary angles add up to 180°

2) 7x + (34x + 8) = 90°

   (2x - 9) + (3x - 11) = 180°

first one is X=2 second one is X=40

Step-by-step explanation:

you add both angles together plus the whole angles size like for instance how its 7x+34x+8=90 you add the variables 41X +8 you subtract 8 to get rid of it, and then you divide 82 by 41.

a precentage of 6th graders. the population is all 6th graders. let me know if i'm wrong, i hope this ! : )

step-by-step explanation: