PLEASE HELP I NEED SO MUCH HELP

Rewrite the expression in z to the n power. the expression i was given is: 1 over z to the negative 1 half power.

Pleas ! its urgent! what is the value of x? enter your answer in the box. mm

Joe owns a fast-food restaurant and wants to know the average time it takes for customers to receive their orders. his restaurant serves about 500 customers a day. he timed 5 orders, and the order times he collected, given in minutes, are shown below. can the approximate order fulfillment time for all of the restaurant's customers be calculated from the given data? if so, calculate it. non-integer answers should be rounded to the nearest tenth. if no assumption can be made, type "0" in the box. the approximate order fulfillment time for all of the restaurant's customers is minutes.