Question

FIRST ANSWER GETS BRAINLIEST ANSWER :

Answer 1

Restaurant D offered the best deal at $13.05 per 9 shrimp because it you but 18 it will only cost you 26.15 but if you buy from restaurant A you only get 16 shrimp for 26.40 so I'd say go wit restaurant D

Answer 2

 the price per 1 shrimp is in restaurant A is 13.20/8= $1.65 
                                                             B is 18.00/20=$ 1.50
                                                              C=  10.32/6= $ 1.72
                                                              D= 13.05/9=  $ 1.45
the answer is that restaurant D offers the best deal per shrimp