This is what I got I dont know if It should be an equation but that's all i can get to, gl
Just substitute in the number 3 for x then subtract 3 at both sides and youll have y=7
Let x be the number of boys, the number of girls will be 200-x
Number of boys with blue eyes x/3
Number of girls with blue eyes (200-x)/4
ll blue eyes ==> x/3 + (200-x)/4 = 57
Reduce to same denominator & solve for x
(4x + 600 - 3x)/12 = 681/12
x=81, the total number of boys & girls200-81 119
300ft cause A=lw and it said its a square so all sides are the sam
so
300 times 300 = 900