The estimated distribution in (in the millions) of the population by age in a certain country for the year 2015 is shown in the pie chart, Make a frequency distribution for the data. Then use the table to estimate the SAMPLE MEAN and the SAMPLE DEVIATION of the data set. use 70 as a midpoint for "65 years and over" under 4 years- 20.4 / 5-14 years- 41.4 / 15-19 years -18.3 / 20-24 years 20.9 / 25-34 years - 46.9 / 35-44 years 32.8 / 45-64 years - 85.1 / 65 years and over -58.9

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.

answer:   expression= p+p*d%

price reduction + sale price = $625

sale price: $p+$p*d%

where d% is the percentage of discount

step-by-step explanation:

original price = p

price went down by $150 price reduction $p*d%

sale price= $ 475

therefore the price before sale is: $625

and the expression that shows the price before sale is: p+p*d%