Question

NEED HELP NOW 52 POINTS WILL MARK BRAINLIEST ANSWER PLZ ANSWER ALL 5 PHOTOS!!!

Answer 1

What is the question numbers

Answer 2

30. add 3 to both sides
xsince it's less than it would be C or the third one
31. add 1 to both sides
7x=10
divide by seven
x=10/7 or A.