What was the role of the consults in the rome republic?

As part of their executive functions, the consuls were responsible for carrying into effect the decrees of the Senate and the laws of the assemblies. ... The consuls could convene the Senate, and presided over its meetings. Each consul served as president of the Senate for a month.

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