I need help on this database SQL questions refer to the table given. Thank you

1. CornerMedStore: What is the average insurance paid overall. Calculate the ratio of insurance coverage as the Insurance Amount Paid divided by the sum of the insurance and patient paid. Show a single result value.

2. CornerMedStore: List all of the ICD10 diagnostic codes that refer to the esophagus. Hint Use wildcards.

3. CornerMedStore: List the female patients who do not use tobacco and were between 50 and 55 as of January 1, 2013.

Vis it Diagnoses ICD10DiagnosisCodes ICD10CM VisitID ICD1OCM 1 ICDDiagnosis Comments Patlent Visit 1 Description PatientID LastName FirstN ame DateOfBirth Gender Telephone Address City State ZIPCode Race TobaccoUse VisitiD PatientID VisitDate InsuranceCompany InsuranceGroupCode Insurance MemberCode PatientAmoun tPaid DateB llsubmitted DateInsurancePaid AmountinsurancePaid Diastol ic Systolic ICD1OProcedureCodes VisitProcedures Description BaseCost Physic lan Role Tech nicianRole Physiclansssistant VisitProcedurelD VisitID ICD1OPC Comment EmployeelD AmountCharged ICD9Procedure Employeevacation Druglistings SeqNo LabelCode ProdCode Strength Units Rx OTC TradeName EmployeelD VacationStart VacationEnd Employee 1 EmployeelD LastName FirstName EmployeeCategory DateHired DateLeft VisitMedications VisitID DrugSeqNo DrugCode Comments EmployeeCategory EmployeeCategory Emergency-e