Question

Need help pls and th x s not a quiz

Answer 1

3, 15, 75, 375, 1875

r = common ratio

`r=\text{ }(15)/(3)\text{ = }(75)/(15)\text{ = }(375)/(75)\text{ = }(1875)/(375)\text{ = 5}`
`\text{ a first term = 3}`
`\begin{gathered} y=a(r^{n\text{ - 1}}) \\ \\ y=3(5^{n\text{ - 1}})\text{ This is the exponential function} \\ \end{gathered}`