Answer:
97.68 %
z(lower) = .0227
z(upper) = .999
Step-by-step explanation:
What are the answer options?
The total bill amount before the service fee is given as $45.
We are given that the tip she wants to leave is 15% of the bill amount, this means that:
tip value = 0.15 * 45 = 6.75$
The total bill would be the summation of the original bill and the tip value she left.
Total bill amount = 45 + 6.75 = 51.75$
2/3 times x-4 = 6
thats the answer :)
