I believe that is gonna be the 225 package.
Thats the lowest number that both 25 and 9 go into
Y = 0.8
4x + 8y = 40
4x + 8*(0.8) = 40
4x + 6.4 = 40
4x = 40 - 6.4
4x = 33.6
x = 8.4
The total of angle measures in a triangle add up to 180 so take subtract 115 from 180 which = 32.5 so that’s the angles measures to C and B. the length of A is 42+53 which equals 95. So your answers are 32.5 and 95!!