How much carbon dioxide will you prevent from entering the atmosphere in one year, if you replace a 100-watt light bulb with a cfl bulb that uses 30 watts in a fixture that you have on 8 hours per day?

The sum of the reciprocal of a positive number and the reciprocal of 2 more than the number is 3/4 equation: the number is

I'm confused on this could anyone me and show me what i need to do to solve it.

Students are given 3 minutes to complete each multiple-choice question on a test and 8 minutes for each free-responsequestion. there are 15 questions on the test and the students have been given 55 minutes to complete itwhich value could replace x in the table? 5507-m23-m8(15-m)8(15)-m