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