I'm assuming this is a Pythagorean theorem problem. If so the answer would be √125
5*6/10 - 2*7/10 =
3 - 1,4 = 1,6
25 thirtieths would equal five sixths equal.
Hope This Helps!! :)
Jillschulz
Mandy: $16.25
Jermey: $16.25 + $3.40 = $19.65
Lily: $19.65 x 2 = $39.30
For Lily you would take the total of Jermey and times it by 2.