Find the value of a and b, when
5+23
= a - b 3
7+4V3

What are “like terms”? why can we only add like terms?

What is the range for 31,39,29,34,37,24,36,33,34,28

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