Katie must take five exams in a math class. If her scores on the first four exams are 70, 68, 84, and 82, then answer the following questions.
The maximum score on an exam is 100 points. If it is not possible for Katie to achieve the required score on the exam, type np in the answer blank.
What score must Katie get on the fifth exam for her overall mean to be at least 70? score =
What score must Katie get on the fifth exam for her overall mean to be at least 80? score =