The number of calories consumed at snack varies directly with the number of cookies eaten. if mandy eats 3 cookies, she will consume 240 calories. how many calories will she consume if she eats 5 cookies

She will consume 400 calories if she eats 5 cookies.

3 cookies = 240 cal.

In order to solve for 5 cal. you need to find the unit rate first, divide both numbers by 3

3/3 = 1 

240/3 = 80

Now we know that 1 cookie = 80 cal.

5 cookies;

80 * 5 = 400 cal.

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is:

(1, –1), (16, –4), (36, –6)

step-by-step explanation:

given that the function is

this can also be written as

we have to graph this function and check which list of points lie on the graph

see attachment for graph:

we find that the points lying are (1,-1) (16,-4) and (36,-6)

since square root is there we find that x can only be posiitve but y can be since square root both positive and negative.