State weather each sequence is arthmetic and justify your answer. if the sequence is artithmetic write a recursive and an explicit formula to represent it. 52, 40, 28, 16

i belive those are the ones that are under 90 degreese.

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation:

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.