HURRY GETTING TIMED What is the sum of the series below?

30 n=1
216,345
216,690
218,085
254,045

To determine the number of deer in a forest a forest ranger tags 280 and releases them back

Suppose i pick a jelly bean at random from a box containing one red and eleven blue ones. i record the color and put the jelly bean back in the box. if i do this three times, what is the probability of getting a blue jelly bean each time? (round your answer to three decimal places.)

Hell . what are the solutions to `10x^2 - 38x - 8 = 0`? is this when i find the factors and use the numbers within the factors to determine the zeros? i hope that made sense lol