I need need this please help me Adam and Shreya are selling wrapping paper for a school fundraiser. Customers can buy rolls of plain wrapping paper and rolls of holiday wrapping paper. Adam sold 6 rolls of plain wrapping paper and 12 rolls of holiday wrapping paper for a total of $198. Shreya sold 9 rolls of plain wrapping paper and 10 rolls of holiday wrapping paper for a total of $201. Find the cost each of one roll of plain wrapping paper and one roll of holiday wrapping paper.​

Step-by-step explanation:

Dude this is easy. So all you have to do is multiply how many rolls they sold a piece. Then after that you would add the totals together and there you have it! I hope this helps!

, 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

(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.