There are 22 fourth grade students and 26 fifth grade students who became cheerleaders. Each cheerleadering group will 8 members. Which equation can be used to find out how many groups can be made?

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Standard deviation of 19,29,21,22,23

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