A small band performed at a local church. They estimated 50 people would attend, but 80 people showed up to watch them play. What is the percent error of the number of people who attended the event?

62.5% increase

Step-by-step explanation: by getting this answer, I divided by the estimation number of people attending, 50, by how many people did join, 80, and got .625 which converts to 62.5%. Hope this helps :D

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.

v = 1/3 a^2h

step-by-step explanation:

if the height is 57.7cm and the height of the slant edge is 18.2cm, then the volume is 1/3 a^2h.