FERMFAST - Does Not Apply 48 HOUR TURBO YEAST 8.5 oz (243 g) PACKET

Can you use this to make mead?

how many gallons will 243 gram treat, or how many grams per five gallon batch? I dont have a package so I cant reread the instructions carefully.

over half a pound to work only 6 gal of mash? dada yeast is more thrifty isn't it?

Does the packet have instructions on how much sugar to use per batch?