Remove the parentheses from the following expression, and combine like terms: (a + b - c) + 3a - 2c

4a + b - 3c

Step-by-step explanation:

you combine a and 3 a, there is nothing to add to be, and since both c's are negative you get - 3c

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.