Emily estimated it would take her 45 minutes to run 3 miles. It actually took her 35 minutes. What was Emily’s percent of error for the time she estimated to run 3 miles?

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

What is the percentile for data value 6 in the following data set? 4 13 8 6 4 4 13 6 4 13 2 13 15 5 9 4 12 8 6 13 40 25 35 62

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?