Which is greater? 2.6 or 2.16?

Consider circle h with a 3 centimeter radius. if the length of minor arc what is the measure of zrst?

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Askyscraper is 396 meters tall. at a certain time of day, it casts a shadow that is 332 meters long.at what angle is the sun above the horizon at that time?