Your underground used-book business is booming. Your policy is to sell all used versions of Calculus and You at the same price (regardless of condition). When you set the price at $10, sales amounted to 140 volumes during the first week of classes. The following semester, you set the price at $30 and sales dropped to zero. Assume that the demand for books depends linearly on the price. Required:
a. Assuming that the demand for books depends linearly on the price, what price gives you the maximum revenue?
b. What does that revenue amount to?

, 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

0.038

step-by-step explanation: