1) (4.8 - 0.42*8.5) / 0.5= (4.8 - 3.57) / 0.5= 1.23 / 0.5= 2.46
2) 30 - 19.56 / (4.2 + 3.95)= 30 - 19.56 / 8.15= 30 - 2.4= 27.6
3) (2.6 - 1.04) / 0.24 0.8= 1.56 / 0.24 0.8= 6.5 * 0.8= 5.2
1) (4.8 - 0.42*8.5) / 0.5
= (4.8 - 3.57) / 0.5
= 1.23 / 0.5
= 2.46
2) 30 - 19.56 / (4.2 + 3.95)
= 30 - 19.56 / 8.15
= 30 - 2.4
= 27.6
3) (2.6 - 1.04) / 0.24 0.8
= 1.56 / 0.24 0.8
= 6.5 * 0.8
= 5.2