Can someone please help me with 1.6 and 1.7 I don't know the formulas

Hpiner Irmh forytur devel lorecost for each frepe of crisuct if espented whendafie at the future ayent is 1 alowi you created for your calcuinuen. (c) in the 7ifind Analyts. Mations of the upreasinertinosid, faluate the lomer fient for rout sares Sor etay diof atsendarice at the fudure erotit is 17900 pticple Relerence this ocot idence anterval yeareated for gruf earulation. (1) this event by relerencing your alen ferecast, from the Tinput Ansheis" secton of the misutel. Hpiner Irmh forytur devel lorecost for each frepe of crisuct if espented whendafie at the future ayent is 1 alowi you created for your calcuinuen. (c) in the 7ifind Analyts. Mations of the upreasinertinosid, faluate the lomer fient for rout sares Sor etay diof atsendarice at the fudure erotit is 17900 pticple Relerence this ocot idence anterval yeareated for gruf earulation. (1) this event by relerencing your alen ferecast, from the Tinput Ansheis" secton of the misutel