Suppose the circumference of a circle is 10 m. What is its radius?

1. are the triangles similar and if so why? what is the value of x? show your work.

1. what is the measure of ∠abc? what is the measure of ∠abd?

Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours