Please help with this math question I really need to get it right

Ican figure out 20 shares multiply by $117.98 =2359.6920 shares multiply by $124.32=2486.40then take 40 shares multiply by $128.48=5139.20after that i'm lost any be greatly appreciated.

Which statements are true about additional information for proving that the triangles are congruent check all that apply

Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose