1. 0,9X+3/4X-1,15X=X(0,9+3/4-1,15)=3(0.9+3/4-1,15)=3*0.5=1.5
2. 5 3/8Y+2.25Y-1 9/16Y= Y(5 3/8+2.25- 1 9/16)=Y(5.375+2.25-1.5625)=
=6.0625Y
6.0625*4=24.25
1. 0,9X+3/4X-1,15X=X(0,9+3/4-1,15)=3(0.9+3/4-1,15)=3*0.5=1.5
2. 5 3/8Y+2.25Y-1 9/16Y= Y(5 3/8+2.25- 1 9/16)=Y(5.375+2.25-1.5625)=
=6.0625Y
6.0625*4=24.25