Which expression represents the product of q and 8, divided by 4? (q + 8) ÷ 4
(q x 8) ÷ 4
(q x 4) ÷ 8
q + 8 - 4

What is the value of x? enter your answer in the box. photo attached.

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”?

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect