Ageometric sequence with a fifth term of 1/3 and a contant ratio of 1/3

Anthony is making a collage for his art class my picking shapes randomly. he has five squares, two triangles, two ovals, and four circles. find p( circle is chosen first)

What is the smallest integer n such that n\sqrt{2} is greater than 20

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?