If the ratio of the radii of two spheres is 2: 3, the ratio of their surface areas will be 8: 27. true or false?

Pepe is going to spin the following spinner 800 times. the spinner is divided into equal sections. a. exactly 160 timesb. clost to 160 times but probably not exactly 160 timesc. exactly 640 timesd. close to 640 times but not probably not exactly 640 times. me

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?