Directions: Write your answer in the box. Do not use spaces. James buys a container of popcorn at an amusement park. The container is a rectangular prism that is 7 inches long, 10 inches wide, and 6 inches tall. How many cubic units can the container hold if the height is doubled? in3

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

21

jk it's 20

step-by-step explanation: