Everyday luis buys 5 more baseball cards to add to his collection . if he has 25 baseball cards before making any purchases , how many will he have on day 20

On the 20th day he will have 125 baseball cards.

Step-by-step explanation:

We are given a statement that:

Everyday luis buys 5 more baseball cards to add to his collection . if he has 25 baseball cards before making any purchases.

We are asked to find  how many will he have on day 20?

Let denotes the number of  baseballs cards on nth day.

on the first day he will have:

on second day he has:

On third day he will have:

and so on on the nth day he will have:

We are asked to find the number of baseball cards on 20th day.

i.e. n=20

Hence, on the 20th day he will have 125 baseball cards.

70,000 + 6,000 + 800 + 30

step-by-step explanation:

typically if you want , you would actually put questions here for us to you. but hey, that's just me. maybe someone will magically answer the questions for you without knowing what they are.