Find the Length of the third side. If necessary, round to the nearest tenth.​

let the unknown side be x , so we have :

25^2 = 20^2 + x^2

625 = 400 + x^2

x^2 = 625 - 400

x^2 = 225

x = √225

x = 15

the equation for this situation is y=122+45. to solve the equation you would add 45 and 122 to get a total of 167lbs. in conclusion, grace's weight eight weeks ago was 167lbs.  

5/12, or 5: 12

step-by-step explanation: