Mia spends 45 min reading each day. she does 2/5 of her reading at school. how many minutes does mia spend reading at school?

How do i do this activity, is appreciated

Write a story that matches with the expression 42x-5 pls hurry

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