Answer:
x=1
Step-by-step explanation:
2(x + 1) + 4 = 8
2x+2+4=8
2x+6=8
2x+6-6=8-6
2x=2
x=1
Complementary angles add up to 90°
m∠4 = 49° then m∠3 = 41°
49 + 41 = 90
I don't really understand this question do u have a pic?
Multiply the 8 by each term to get 8x -24
The answer is A. 8x-24
.........where 78 is the total girls and d is the number of girls in a group.