Answer:
-4.375
Step-by-step explanation:
x=6
/AB/=2x+12
/BC/=5x+10
3x+2=5x-10 subtract 2 from both sides
3x=5x-12 subtract 5x from both sides
-2x=-12 divide both sides by -2x
x =6
5 ft * x ft
x ≤ 3 ft
3:11
the other ones have 7 in them