Question 187496
.9(t+4)+.75t=16.80
.9t+3.6+.75t=16.80
1.65t=16.80-3.60
1.65t=13.20
t=13.20/1.65
t=8 taffy bars were bought.
8+4=12 chocolate bars were bought.
Proof:
.9*12+.75*8=16.80
10.80+6.00=16.80
16.80