Final answer:
After applying a 95% discount and 19% sales tax to 18 baseball card packs, Tyrese's total is $5.36, and he receives $94.64 in change from $100.
Step-by-step explanation:
After applying a 95% discount and 19% sales tax to 18 baseball card packs, Tyrese's total is $5.36, and he receives $94.64 in change from $100. Let's calculate how much change Tyrese will receive after buying 18 packs of baseball cards with a 95% discount and sales tax. First, without the discount, 18 packs at $5.00 each would cost $90.00. Since he's buying more than 10 packs, he gets a 95% discount: $90.00 × 0.95 = $85.50 discount.
So, the discounted total is $90.00 - $85.50 = $4.50. Next, we include the 19% sales tax: convert 19% to decimal which is 0.19 and multiply by the discounted total ($4.50): $4.50 × 0.19 = $0.855, rounded to $0.86. Now add this to the discounted total: $4.50 + $0.86 = $5.36. Tyrese gives $100, therefore the change he receives is $100 - $5.36 = $94.64.