Please help asap! will give brainliest

Need showing work for this problem 56.25 ×25.80

A+b= 17, ab=70, find the value of |a-b|

At the bulk food store, stacy bought 7 lbs of nuts. she used 8 ounces of nuts in a recipe and then put the rest of the nuts into small bags to use for snacks. if each small bag contains 4 ounces of nuts, how many small bags of nuts did stacy make? a, 26 b,24 c,19 d,15. show work first one , to you first user, okie welp