August hosted two dinner parties for his friends. Twenty-five guests attended the first party, and twenty-six guests attended the second party. What is the percentage increase of the number of guests from the first party to the second party?

increase of 4%

Step-by-step explanation:

First party: 25

Second party: 26

Multiply by 4 to get to a hundred to make it easier to tell the percentage increase:

25 x 4 = 100%

26 x 4 = 104%

From the first part to the second party, the guest amount increased by 4%.

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%

both equations and proportions are better.