Use the ordered pair translation rule (x, y) → (x - 2y + 7) to find the preimage of (2,18).

Me what is the value of x? showing work would be appreciated - ! : )

Ineed with number 6 , explain how to get 1978

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