The class average on a statistics exam was 89,with a standard deviation of 2 points. gracie scored 82 on the exam. what percentage of students scored higher than gracie. a.96.98%b.97.42%c.94.32%d.99.98%

Abike shop sells you a bicycle for $63 and a helmet for $21. the total cost is 150% of what the shop spent originally. how much did the shop spend originally? how much profit did the bike shop earn by selling the bicycle and helmet to you ?

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why?