Answer:
A single pencil costs $0.85 and a single eraser costs $0.60
60:200
6:20 divide by 10
3:10 divide by 2
Easy
First we have to put the numbers in order
2,6,8,13,16,28,32 and mark the two middle numbers
divide each half into half again and mark the middle number, in this case
2,6,8,13,16,28,32
subtract the 28 from the 6 and get 22
thats the interquartile range
-5.25 -(-7.5) (Conversion to decimals cuz' it's easier for me to type)
-5.25 + 7.5 (Subtracting a negative is like Adding a Positive)
7.5 - 5.25 (Rearranging)
2.25 (Subtracting)
2 1/4 Final Answer.
To do it w/o converting to decimals, make sure the fractions have the same denominator.
