An = 5 +0.2(n - 1)

Write the explicit formula in a function form

Step-by-step explanation:

Given:

It is the formula of nth term in Arithmetic progression

where 5 = First term

0.2 = common difference

To write first term , we use f(1).

nth term will be

Hence, the function form :

4 adults and 12 babies

step-by-step explanation:

4 x 7 = 28

12 x 15 = 180

180 + 28 =208

4 x 3 = 12

answer: $201

step-by-step explanation: to get the answer, you first get 3 nieces that he sold and multiply it by 67 and get $201, so he earned $201 selling his nieces.