Elijah wants to conduct a survey as to whether music cds should be added to the items sold in the school store. which sampling method will offer elijah the best results?
interview every student in the school band.
interview every student attending the local outdoor concert.
interview every student wearing earbuds in the cafeteria.
interview every 5th student who enters the building in the morning.

Aculinary club earns $1360 from a dinner service. they sold 45 adult meals and 80 student meals. an adult meal costs twice as much as a student meal. what is the cost of an adult meal?

Me find the answer and explain the process to find the answer of the problem appreciate it : )

22 points algebra 1//sum and product of rational and irrational numbers. dont have to do all 4 if could much : )) write an example: 1) how the product of two identical irrational numbers can be a rational number. 2) how the product of two different irrational numbers can be a rational number. 3) write a quotient of intergers that is not a real number. 4) is the set of positive irrational numbers closed for the operation of division? if not give a counter example.