
# create the initial variables below
age = 28
sex = 0
bmi = 26.2
num_of_children = 3
smoker = 0

# Add insurance estimate formula below
insurance_cost = 250*age - 128*sex + 370*bmi + 425*num_of_children + 24000*smoker - 12500
print("This person's insurance cost is "+ str(insurance_cost) + " dollars")

# Age Factor
age += 4
new_insurance_cost = 250*age - 128*sex + 370*bmi + 425*num_of_children + 24000*smoker - 12500
change_in_insurance = new_insurance_cost - insurance_cost
print("The change in cost of insurance after increasing the age by 4 years is "+str(change_in_insurance)+"  dollars.")
# BMI Factor
age = 28
bmi += 3.1
new_insurance_cost = 250*age - 128*sex + 370*bmi + 425*num_of_children + 24000*smoker - 12500
change_in_insurance = new_insurance_cost - insurance_cost
print("The change in estimated insurance cost after increasing BMI by 3.1 is "+ str(change_in_insurance)+ "dollars.")
# Male vs. Female Factor
sex = 1
bmi = 26.2
sex = 1
new_insurance_cost = 250*age - 128*sex + 370*bmi + 425*num_of_children + 24000*smoker - 12500
change_in_insurance = new_insurance_cost - insurance_cost
print("The change in estimated cost for being male instead of female is "+str(change_in_insurance)+ "dollars.")
# Extra Practice