Question 200704
1) .04x+.0225(33000-x)+970
.04x-.0225x+742.5=970
.0175x=227.5
x=13000
.04(13000)=$520
.0225(20000)=$450
total=$970

2) students=x
   adults=2x
2x+3(2x)=824
8x=824
x=103
103 students =$206
206 adults   =$618
total        =$824