Plsss help I’ll give u brainlest and 5 or 10 points pls

What is the measure of angle afe? 79 81 91 99

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?

At the beginning of a call to the cable company, a message tells customers, "after you finish talking to our customer service representative, you will be asked to take a five-question survey about the level of service you recieved. it would be appreciated if you could stay on the line to answer the survey questions." what type of sampling is the cable company using?