Each batch of mrs. crawleys toffee makes 14 pieces of toffee. if sandy needs 8 dozens pieces of toffee , how many batches does she have to make ?

So each batch makes 14 pieces
and she need 8 dozen (dozen=12) so 8 dozen=8*12=96
so 14 pieces per batch 
needs 96 pieces

x=number of batches 
14 times x=96
14x=96
divide both sides by 14
x=96/14
96/14= aprox 6.86

but you normally can't make a fraction of a batch so she need to make 7 batches at the least

Is this from a

In all honesty, there really is no “work” per say to show. mainly it’s just using the process of elimination. the question is asking which domain(s) would be the most appropriate for the function c(n). n is the number of observed vehicles so right away, 1, 2, and 3 can be eliminated.why? 1, 2 start in the negatives and therefore it is impossible to observe negative cars. so, #4 would be the best answer to the given problem.