Ed spent 8.5% of his savings on lunch, which cost 5.25$. how much did he have in savings before lunch

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.

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.