Why did president polk think the mexican government might want to sell california and new mexico?

Because they were thinly setteled and the Mexican government had long neglected them.

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

c) he felt the constitution clearly gave states this right.