Give an example of an event for which the probability equals 1. justify your answer

Our goal is to collect email addresses from 60% of customers who purchase a product." so that means if i talk to 95 customers, i need to persuade to provide an email address?

Find the zeros of each function. f(x) = x^2 + 5x - 6

Solve this problem! extra ! 3025/5.5 = a/90.75