A thin wire is in the form of an triangle of side 11 cm. Find the area of a circle whose circumference is equal to the length of the fire

Steve had 48 chocolates but he decided to give 8 chocolats to each of his f coworkers. how many chocolates does steve have left

Having a hard time understanding this question (see attachment).

Do one of the following, as appropriate: (a) find the critical value z subscript alpha divided by 2 , (b) find the critical value t subscript alpha divided by 2 . 99%; nequals 17; sigma is unknown; population appears to be normally distributed.