I understand the basic concepts behind these questions but I am entirely lost. Honestly where do I even start?

Abag has more green balls than blue balls, and there is at least one blue ball. let bb represent the number of blue balls and let gg represent the number of green balls. let's compare the expressions 2b2b and b + gb+g. which statement is correct? choose 1

What is the perimeter of square abcd? units units 28 units 37 units

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?