I need help me need to match i am getting confuse.

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Mustafa heloise and gia have written more than a combined total of 22 articles for the school newspaper.heloise has written 1/4 has written articles as mustafá has gia has written 3/2 as many written articles as mustafá has