The circle has a radius of 3 cm. what is the area of the circle? a. 9.42 cm2 b. 56.52 cm2 c. 18.84 cm2 d. 28.26 cm2

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?

Olga used 100 ounces of flour to make 225 muffins. how many ounces of flour will be used to make 300 muffins?

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