Answer:
4.019
Step-by-step explanation:
4*1+1*1/100+9*1/1000
Changing to decimal form
4 + .01 +.009
4*1 = 4
1*1/100 = 0.01
9*1/1000 = 0.009
= 4 + 0.01 + 0.009 = 4.019
