Margaret is selling rings for $2 and necklaces for $5 at a toy convention. Margaret leaves the table and asks her friend Christine to run the table for her. She returns to find Christine has made $93. Christine does not know how many of each item she sold, but she remembers that she sold a total of 30 rings and necklaces. How many rings were sold?

4

Step-by-step explanation:

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.

depends on how many days you are talking about

step-by-step explanation: