Afire spreads in a circular pattern at a rate of 16 feet squared per hour. find an equation for the radius r without using calculus

R=√((16*h)/π)

Where r is the radius, h is the number of hours
I'm not sure about the answer...

So don't take my word i'm not exactly a mathematical person but i would assume a. because while selling the soap every month you increase in sells so you would by 11 percent. the you would get the factor 0.89 which if i had to guess would be the monthly profit over 11 probably wrong tho