Step-by-step explanation:
inside diameter = 11/2 - 3/16 = 85/16 or 5.3125 inches
Topic: fractions
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The answer is a) 35 because if you set 21/49 and 15/h equal to eachother and cross multiply it should lead you to 21(h) = 15(49) which then equals 21h = 735 and if you divide 21 on both sides you should get h = 35
=743.5−462.87
=743.5+−462.87
=280.63
98.01+52.003
=150.013
74.9−16.227
=74.9+−16.227
=58.673