What is to be puzzled or unsure?

How much interest would you earn of a 30000 investment? How many times dose 4 go in to 65? How many eights are there in the numbers from 8 to 100? Is it true to solve a system of inequalities graphically you need to graph each inequality and see which points are in the overlap of the graph? What are the composite numbers between the number 40-50? What calculus book is clearly explain? What percentage is 40 dollars out of 2670 dollars? Sides and vertices? How many fives must be taken from 3 fifties to leave 1.15? How do you put 3150 to a percent? Write tree equivalent ratios for each ratio 18 6? What is the simplest form for 42 out of 49? How much is zillion? What is the meaning of the name Arthur? What is the square root of 56 to the nearest tenth? How many lakhs is 500 million? How many ones blocks would you need for making a picture worth 1000? What is the axis of symmetry for f of x is equal to x squared plus one? What is the answer in least common multiple of 169 and 637 and 845? How to write 100 by using all the ten digits?