Answer:
3
Step-by-step explanation:
divide 3.75 by 1.25 to get 3
3 3/4/1 1/4=3
0.24
4/5=0.8
0.8 to the power of 2 or 0.8*0.8= 0.64
2/5=0.4
0.64-0.4= 0.24
24. because 2009-2005+20 = 24. hope that helps