500/4= 125
she has written 125 words and needs to write 375 more
1750mg in 1.75g just move the decimal place over three places.
so its 1750mg
≈0.128 is the correct answer
Assume widthis x-2
perimeter is 2*(width+length)
so 2*(x+x-1)>112
2*(2x-1)>112
4x-2>112
x>28.5
so any length greater than 28.5 will work