Nested form with radio buttons - ruby-on-rails

Question

Nested form with radio buttons
Hi there,
I am a Rails newbie .
I've been trying to build a nested form with radio buttons.
Let me explain it.
The form for choosing a staff from a list using a radio button
Let's say
O John
O Jake
O Blake
O All
and then choosing another a radio button option for multiple amount choices such as
O 2$
O 4$
O 8$
O 10$
Then finally a submit button to post the values to the paymentgate Api.
For example, John, 8$
<% #staffs.each do |staff| %>
<tr>
<td><%= staff.first_name %></td>
<td><%= staff.last_name %></td>
<td><input id="favorite_color_maroon" name="favorite_color" type="radio" value="maroon" /></td>
<input type="radio" name="picker" value="whatever_who_cares"> Whatever, who cares? </form>
<td><%= link_to 'Show', staff %></td>
<td><%= link_to 'Edit', edit_staff_path(staff) %></td>
<td><%= link_to 'Destroy', staff, method: :delete, data: { confirm: 'Are you sure?' } %></td>
</tr>
<% end %>
<form action="/action_page.php">
<p>Please select your age:</p>
<input type="radio" id="age1" name="age" value="2">
<label for="staff_value">2</label><br>
<input type="radio" id="age2" name="age" value="4">
<label for="age2">4</label><br>
<input type="radio" id="age3" name="age" value="8">
<label for="age3">8</label><br><br>
<input type="radio" id="age4" name="age" value="10">
<label for="age4">10</label><br><br>
<input type="submit" value="Submit">
</form>
so how can I associate those radio buttons along with submit button to the external api?