HELP ME PLEASE IM BEGGING

Find all the angles that satisfy the equation cos(θ)=32

What is the t intercept of the line given by the equation below y= -10x + 14

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?