Final answer:
Sarah pays 70% of the bill, and the employer covers the remaining 30%. The correct answer is D) Sarah paid $2,340, her employer paid $1,050, and the total cost is $3,390.
Step-by-step explanation:
To find the total cost, we first need to determine the full bill amount. Since Sarah pays 70% of the bill, we can use the equation:
Total cost = Sarah's payment / Percentage she pays
Total cost = $45 / 0.7 = $64.29 (rounded to two decimal places)
To calculate the employer's payment, we subtract Sarah's payment from the total cost:
Employer's payment = Total cost - Sarah's payment = $64.29 - $45 = $19.29 (rounded to two decimal places)
Therefore, the correct answer is D) Sarah paid $2,340, her employer paid $1,050, and the total cost is $3,390.