To get a B in math Katie must average 80 on 5 tests. Scores on her first 4 tests were 88, 71, 64 and 90. What is the lowest score she can get on her fifth test and still get a B? Savings = $

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

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4

Could somebody me with this radical simplification?