The correct answer is:
$76.32.
Explanation:
Adding together the paper for $24.95 and the toner refill for $35.99 gives us
24.95+35.99 = $60.94
50% off of the ink that is normally $49.95 gives us
0.5(49.95) = 24.975 = $24.98
Together this gives us
$60.94+$24.98 = $85.92
Taking 15% off of this leaves us with 100-15 = 85% of the cost; this gives us
0.85(85.92) = $73.032 ≈ $73.03
Adding 4.5% tax means we spend 100% of our $73.03 plus an additional 4.5%; 100+4.5 = 104.5%; 104.5% = 104.5/100 = 1.045
This gives us
1.045(73.03) = $76.32
