PLEASE HELP

(r + 2)(r - 3) = 0?
A. 6
B. 0
C. 2
D. -3
E. -6

Tcan be concluded that % of the seniors would prefer to see more candid pictures in this year's edition of the yearbook.

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.