i need help im bad at math it would be great if you gave the answers and explained how

solve for x: 4/9x-2=2/3 (in fraction form)

solve for x: 0.5 (x+0.3)=2.95 (in decimal form)

11x-4 is greater or less or equal to 117

what is 72-3x and is it greater less or equal to 30