500 people were surveyed and asked whether had donated food or money to local charities in the past year. 80 had donated food, 150 had donated money, and 45 had donated both. what is the probability that a person chosen and random has donated food or money? express your answer as a decimal rounded to the nearest hundredth.

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.

8 2/3 is the answer

step-by-step explanation: just use a calculator