One teaspoon is equal to 5 milliliters.
http://wiki.answers.com/Q/What_is_one_teaspoon_equ...

Half of the number 34 would be the number 17. 17 multiplied by 2 would be equal to the number 34, which is why 17 is half. If you needed to know what 34 is doubled, then the answer
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3n + 4 = 7. ( 4 from both sides) 3n = 3. (divide both sides by 3) n = 1.
http://wiki.answers.com/Q/What_is_3n_plus_4_equals...

theres an infinite number, but the next 3 would be: 8 to 6, 12 to 9, 16 to 12.
http://wiki.answers.com/Q/What_3_ratios_are_equal_...
