Respuesta :
40 <= x =<100 inequality shows the right answer.
Explanation:-
Since she has to reach the $200 mark by selling cakes at the rate of $5 each.
So, the minimum number of cakes should be 200/5 which is equals to 40.
Hence minimum value of number of cakes (x) = 40
It is given that She has 100 cakes this implies that maximum value of x can be 100.
hence X can be any value between 40 to 100 both inclusive.