Question

Can you guys help me with these 3 questions

Answer 1

The last one is .47 with the bar over both numbers

Answer 2

10. Not sure what the question is. Looks like it could be to write 9/5 in decimal form? In that case, we have 1/5 = 0.2, so 9/5 = 9*0.2 = 1.8

11.
`52.\overline{23}=52.232323\ldots`. If we round to 5 decimal places, the approximate value is 52.23232

12. By long division, we can show that
`\frac{4.3}9=0.4777\ldots`. In repeated decimal notation, that's
`0.4\overline7`