How many whole numbers "n" satisfy the inequality shown ?
1/9<1/sqroot of n<1/7

Step-by-step explanation:

1/9 < 1/√n < 1/7

9 > √n > 7

81 > n > 49

n = 50, 51, 52, ..., 80

n has 31 possible values

the multiples of 15 are 15, 30,45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195,   210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375,   390, 405, 420, 435, 450, 465, 480, 495, 510, 525, 540, 555, 570, 585, 600, 615, 630, 645, 660, 675, 690, 705, 720, and 735.

the factors of 15 are 1, 3, 5, and 15.

hope that , fam!

-une, your fren : )