What is the 6th term of the geometric sequence where a1 = −4,096 and a4 = 64?

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics

Select all of the following expressions that are equal to 2.5.

Could someone me with this question i’ve been stuck on it for 20 minutes