FORTY WHOLE POINTS FOR U AND THANKS AND BRAINLIEST AND 5 STARS PLEASE I NEED THIS IM CONFUSED IDK SLOPE IM NOT GOOD AT MATH I NEED SOMEONE TO ANSWER THIS FOR ME

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

Solve for x and y a x= 13.3 y= 16.7 b x= 23.3 y= 12.5 c x= 7.5 y= 16.7 d x=7.5 y= 12.5

Stacey filled her 1/2 cup of measuring cup seven times to have enough flour for a cake recipe how much flour does the cake recipe calls for