The graphs below show four functions: graph a shows function f of x equals 3 multiplied by 3 to the power of x. graph b shows function f of x equals 9 to the power of x. graph c shows function f of x equals 3 multiplied by 3 to the power of negative x. graph d shows function f of x equals 9 to the power of negative x. which graph best shows the function f(x) = 3(3)−x to represent the rate at which a radioactive substance decays?

to better understand the problem, you shall convert the statements into equations for the following graphs:

step-by-step explanation:

wrgasadvauoyfaiua-00uhf

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.