The average distance from mercury to the sun is approximately 5.79 * 10^7 km. If one kilometer is equal to about 6.68 * 10^-9 astronomical units, about how many astronomical units is the average distance from Mercury to the Sun? Write your answer in scientific notation

The weights of players in a basketball league are distributed normally. the distance (d) of each player's weight (w) from the mean of 86 kilograms was computed as follows: d = |w - 86| if d is greater than 7 for approximately 5% of the players, what is the approximate standard deviation of the players' weights? a. 1.75 kilograms b. 3.5 kilograms c. 4.3 kilograms d. 7 kilograms

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In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.