Chris operates a small sign-making business. he finds that if he charges x dollars for each sign, he sells 44−x signs per week. what is the smallest number of signs that he can sell to have an income of $420 in one week?

smallest number of signs that he sell is 14

Explanation:

Given data

charges = x dollars

sells = 44−x signs per week

income = $420

to find out

smallest number of signs

solution

we consider he sell small x number of signs

so

we can say here

income = price  × quantity

so

420 = x (44-x)

420 = 44x - x²

x² - 44x + 420 = 0

x=14 or x=30

here small no is 14

so smallest number of signs that he sell is 14

magnitude and direction

d. platinum would have the greatest temperature increase because it has the lowest specific heat.