During a local campaign, eight republicans and five democratic candidates are nominated for president of the school board. if the president is to be one of these candidates, how many possibilities are there for the eventual winner?

13

Explanation:

Given

During a local campaign 8 republicans and 5 democratic candidates are nominated for president of the school Board.

If the president is to be one of these candidates then

there can be ways to select a president

can be expanded to

therefore

Therefore there can be 13 ways to do it.

local max is .5

step-by-step explanation:

the local maximum is for x values between 2 and 4

it looks like the x value is 2.5 and the y value is .5

d. the polar jet stream   lies between the polar easterlies and trade winds should be your answer