Answer:
Step-by-step explanation: Multiplication first 7x1 = 7, Take 7 and divide it by 10 which gives you 0.7, Do the same but for the other 2 questions,
(9x1/100 = 0.09)
(9x1/1000 = 0.009)
(7x1/10 = 0.7)
Now take the answers and add them up
0.09 + 0.009 + 0.7 = 0.799
Answer: 0.799