25 points and find the sum of the series. include each term that leads to the final sum and show the expression for finding that term.

the 5 is above the sigma, while the k=3 is below.
show work!
∑5 k=3(−2k+5)

Chose the graph below that represents the following system of inequality’s

Colby and jaquan are growing bacteria in an experiment in a laboratory. colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. jaquan starts with 80 of a different type of bacteria that doubles every 3 hours. let x equal number of days. colbys experiment follows the model: a.) y=50*2^x b.) y=50*2^8x c.) y=50*2^12x jaquans experiment follows the model: a.)80*2^x b.)80*2^8x c.)80*2^12x

Select the lengths in centimeters that would form a right triangle