Sabella & her family went to Red Lobster. Their bill was $135.65. They had a 15% off coupon on meals more than $75. In addition, they wanted to leave a 20% tip on the original bill amount. How much tip should they leave? How much will they be discounted? What would be their total for the bill with the discount and tip included

Step-by-step explanation:

Their original bill was $135.65. If they wanted to leave a 20% tip on the original bill amount, then the amount of tip that they would leave is

20/100 × 135.65 = 0.2 × 135.65 = $27.13

They had a 15% off coupon on meals more than $75. This means that their meal qualified for the coupon. The amount discounted would be

15/100 × 135.65 = 0.15 × 135.65 = 20.3475

The total for the bill with the discount and tip included would be

135.65 - 20.3475 + 27.13 = $142.4325

d

step-by-step explanation:

d

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is: