What is the standard form of this expression? (4y-9)(2y-3)

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap