## Algebra 1

P(d)=45$\times$$1.5^{d} P(-2)=45\times$$1.5^{-2}$ =$\frac{45}{1.5^{2}}$ = $\frac{45}{2.25}$ = 20 P(0)=45$\times$$1.5^{0} = 45 \times 1 = 45 P(1)=45\times$$1.5^{1}$ = 45 $\times$ 1.5 = 67.5 so 67 finches as you can't have half of a finch.