Jika 2^log=a Dan 3^log5=b, maka tetunkun 4^log10 and 4^log90

Question and answers are in the attached picture. you so much in advance.

Consider the system: y = 3x + 5 y = ax + b what values for a and b make the system inconsistent? what values for a and b make the system consistent and dependent? explain

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?