Which in an example of a sin tax?

excrise tax

Explanation:

a sin tax is an excrise tax specifuically levied on certain goods deemed harmful to society and indiviuals,for example alcohol and tobacco

whose power in the senate is equal to the power of the speaker of the house?

the installment plan of the 1920s, an arrangement that allowed people to buy what they wanted with a small down payment and pay off the rest in monthly installments, provided americans a way to own what they did not have the money to buy.