Suppose you do a favor for 3 people. then you ask each of them to do a favor for 3 more people, passing along the request that each person who receives a favor does a favor for 3 more people. suppose you do 3 favors on day 1 , each recipient does 3 favors on day 2, and so on.

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”?

To decrease an amount by 16% what single multiplier would you use

Which equation is equivalent to the given expression? -(1/2y+1/4) a. -1/4(1+2y) b. 1/4(2y-1) c. -2(1/4y-1/8) d. 2(1/8-1/4y)