Kelly has 15 blue bracelets and 12 green bracelets. what is the ratio of kelly’s blue bracelets to green bracelets?

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

(60 points) explain this in detail

What is the circumference of the pie