Answer:351.858377202
Step-by-step explanation:need to hurry sorry!!!!
First we have to assume that each quarter touched each other. Hence the area of the table not covered by the coins (A) is equal to the total area of the table (At) minus the total area of the coins (Ac). Coins are circle, so

and r =24.26mm. The area of one coin is then 1848.98mm^2. Hence the equation is A = At - xAc where x is the number of coins.
Answers
1. 1/4 x M-6= (m+9)x2
Ps. Couldn’t do 4
I don’t think it’s any of them i went through and tried all of them and none of them were equal. I honestly could just suck