I need help with this problem please, and please make it legible.

t Find the arc length parameter along the curve from the point where t= 0 by evaluating the integral 5 = I|v(1:)| d1. Then nd the length of the indicated portion of the curve. 0 r(t)=(8+5t)i+(6+2t)j+(1-2t)k, -1stso The arc length parameter is s(t)= . (Type an exact answer, using radicals as needed.) The length of the indicated portion of the curve is (Type an exact answer, using radicals as needed.)