Question 993978
x=2% amount
x+800=4%
.02x+.04(x+800)=92
.02x+ .04x + 32=92
.06x=60
multiply both by 100
6x=6000
x=1000
x+800=1800
2% of 1000=$20
4% of 1800=$72
$1000 at 2%
$1800 at 4%