Last week, ms. simpson work 28 hours. she stocked shelves for 45 minutes each hour for 14 of those hours. the rest of the time she worked in customer service. how many minutes last week did ms. simpson work in customer service

News cameras take an overhead picture of a crowd at an outdoor event journalist then count the total number of people in the picture and use the sample of estimate the total number of people in the crowd this process is an example of

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?

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11