Arkansas does not allow local jurisdictions like cities or counties to collect a local sales tax. The Arkansas state sales tax of 6.5% is applicable statewide. You can view the sales tax rates for various cities in Arkansas here.
Equitable adjustment is a term of art that includes an adjustment to fee, and the target. minimum, and maximum fees should not be increased in this case for what I hope are obvious reasons. The adjustment should be limited to the effect of the new wage determination on wages and fringes.
A trustee may adjust between principal and income to the extent the trustee considers necessary if the trustee invests and manages the trust assets as a prudent investor, the terms of the trust describe the amount that may or must be distributed to a beneficiary by referring to the trust's income, and the trustee determines, after applying division (A) of section 5812.02 of the Revised Code, that the trustee is unable to comply with division (B) of that section.