You spend 3 2/5 hours hiking and an additional 1/2 hour to rest. How much time did you spend hiking and resting?

The circumference of a redwood tree trunk is 20π ft, and it is 100 ft tall. what is the approximate volume of the redwood tree trunk? 1,000π ft3 10,000π ft3 4,000π ft3 40,000π ft3

In 2009, there were 1570 bears in a wildlife refuge. in 2010, the population had increased to approximately 1884 bears. if this trend continues and the bear population is increasing exponentially, how many bears will there be in 2018?

Susie wants to take her friend out for lunch.she wants to spend $9.75 each person. how much will she spend in all.