Answer:
a-6b-6c-2
Step-by-step explanation:
1800*3/4=1350 so their are 1350 people over the age of 25.
1800*1/5=360 so their are 360 people over the age of 60.
so if their are already 1710 people(1350+360).
So 1800-1710=
90 People under 25.
3x-52=2x+2 (v.o.a)
3x-2x=2+52
x=54
a: 35c5 or 35 factorial(30!×5!) = 324,362
