Find z, the total impedance, of each circuit

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

Jim had 15 minutes to do 5 laps around his school what would his time be

Pleasse me i need an answer. give me the correct answer. answer if you know it ! the club will base its decision about whether to increase the budget for the indoor rock climbing facility on the analysis of its usage. the decision to increase the budget will depend on whether members are using the indoor facility at least two times a week. use the best measure of center for both data sets to determine whether the club should increase the budget. assume there are four weeks in a month. if you think the data is inconclusive, explain why.