Answer: 109.49
Step-by-step explanation: To get the total amount Zach will pay, we must first compute the tip. Zach's tip will be 0.15 * $95.21 = $0.15*95.21=14.28 since he wants to leave a 15% tip, add the tip amount to the original amount he paid for boarding his dog. So Zach's total payment will be $14.28 + $95.21 = $14.28+95.21=109.49.