Find an arc length parametrization ������1(������) of the curve ������(������)=⟨9cos(������),9sin(� �����),83������3/2⟩, with the parameter ������ measuring from (9,0,0). (use symbolic notation and fractions where needed. ) ������1(������)=.

Part a: sam rented a boat at $225 for 2 days. if he rents the same boat for 5 days, he has to pay a total rent of $480. write an equation in the standard form to represent the total rent (y) that sam has to pay for renting the boat for x days. (4 points)