The number of woodpeckers in a forest have a mean, mode, and standard deviation of 20, 20, and 5 respectively. Find the range of data between 2 standard deviations from the mean.

Solve by any method (graphing, substitution or linear combination)y = x - 82x + 3y = 1a) (2, -6)b) (5, -3)c) (4, -4)d) (0, -8)i figured it out. the answer is (5, -3)

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.