Question

My teacher wrote the answer on the side but can you please tell me how he got it

Answer 1

`(70)/(9)`
`(7)/(90)*100`
`(70)/(9)`

now solve further.

`7.77\text{ \%}`

thus, the answer is 7.77% of 90 is 7.

`(7)/(90)*100=(70)/(9)=7.77^{}`

thus, the answer is 7.77% of 90 is 7.