answer: h=5.6 i don't really know how to put into words, so i though i would let you do that. i hope i was able to some
step-by-step explanation:
18 = 6(h)+1/2
18 = 6h+1/2
18-1 = 6h/2
17 = 3h
17/3 = h
h = 5.6
Answer from: Quest
a magnifying glass is a convex lens which produces a magnified image of an object. for a magnified image to be observed the distance between the object and the lens has to be shorter than the focal length of the lens.