The IQR or interquartile range is the difference between Q1 and Q3, also know as the upper and lower quartiles.
it would look like this: x times 7 -> 7x
767 rounded to the nearest ten is 770
For the first two, put it them over 100. So number 1 would be 34/100 or 17/50 reduced. Number 2 is 77.5/100 and since it is a decimal, I would keep it at over 100. Number 3 put 8/10 or 4/5 reduced and number 4 is different. Think of it as money and how a quarter is in relation to a dollar. You have 4 quarters in a dollar, so since you have .25%, it is 1/4.
