Vida painted 7 rooms in 28 hours. Each room had 350 square feet of wall space that was painted. At what rate did Vida paint, in square feet per hour?

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

Solve x+3y=6 and 4x-6y=6 by elimination . show work !

The sum of a number and 5 times the number is 18.find the number