Your business is dependent on gas to transport its goods. the price of oil decreases, which means your production costs

less

Explanation:

The oil and gas can be used as a fuel to run the vehicle. Here, gas is used for transportation of goods in business. But it is mentioned that the price of oil has decreased as a result of this the oil can also be used for the purpose of transportation. Thus the cost of production will be less.

d. people are naturally good, and their expressed will is what is best for society

explanation:

the amount of the purse is, $120.

tax rate =9%

first find the the total tax she paid on the amount is equal to the 9% of $120 i.e,

now,

total amount paid by shalika = $120 +$10.8 = $130.8