30 out of 120 students surveyed in JHS 185 participate in extracurricular activities. Nason is trying to create a simulation model for how many students participate in extracurricular activities. Which would not be appropriate to use? *

Compare the subtraction problems 6/8 - 5/8 = 1/8 and 6/9 - 7/9 = 1/9 why is the answer to the first problem positive and the answer to the second problem negative

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?