Respuesta :
18 nails at first
now the total number of nails in box=n-18 where n=original number in box
she uses 10 more than (10+) half (1/2) number of nails in box
10+1/2 times (n-18)
therefor the answer is 1/2(n-18)+10
the answer would be third one if you distribute but it looks like you forgot the / symbol so then answer is
the answer could be the floowing
1/2(n-18)+10
1/2n-18/2+10
1/2n-9+10
1/2n+1
pick the one that is listed as a possible answer
now the total number of nails in box=n-18 where n=original number in box
she uses 10 more than (10+) half (1/2) number of nails in box
10+1/2 times (n-18)
therefor the answer is 1/2(n-18)+10
the answer would be third one if you distribute but it looks like you forgot the / symbol so then answer is
the answer could be the floowing
1/2(n-18)+10
1/2n-18/2+10
1/2n-9+10
1/2n+1
pick the one that is listed as a possible answer