Bridget has a photo album with 6 photos per page. The album is full. The total number of photos in the album is either 186, 286, or 386. She pays $2.85 to preserve each page. How much does Bridget spend to preserve the entire album?

only 186 is a multiple of 6.

So, $2.85 * 186/6 = ?

To find out how much Bridget spends to preserve the entire album, we need to first determine the number of pages in the album.

Let's consider the three possible total numbers of photos in the album:

1) If there are 186 photos in the album:
The number of pages can be found by dividing the total number of photos by the number of photos per page:
186 / 6 = 31 pages

2) If there are 286 photos in the album:
Again, divide the total number of photos by the number of photos per page:
286 / 6 = 47.67 pages

Since the number of pages must be a whole number, we cannot have 47.67 pages in the album. Therefore, this option is not valid.

3) If there are 386 photos in the album:
Divide the total number of photos by the number of photos per page:
386 / 6 = 64.33 pages

Again, this option is not valid since the number of pages cannot be a decimal.

Therefore, the only possible number of pages in the album is 31 pages for a total of 186 photos.

Now let's calculate the amount Bridget spends to preserve the entire album:
Since she pays $2.85 per page, the total amount she spends is calculated by multiplying the number of pages by the cost per page:
31 pages * $2.85/page = $88.35

Therefore, Bridget spends $88.35 to preserve the entire album.

To find out how much Bridget spends to preserve the entire album, we first need to determine the number of pages in the album.

We know that there are 6 photos per page. Let's denote the number of pages as 'p'. Therefore, the total number of photos in the album can be represented as 6p.

From the given information, we have three potential answers for the total number of photos in the album: 186, 286, and 386. We can express this as three equations:

1) 6p = 186
2) 6p = 286
3) 6p = 386

Now, let's solve each equation to determine the number of pages:

1) 6p = 186
Divide both sides by 6:
p = 186 / 6
p = 31

2) 6p = 286
Divide both sides by 6:
p = 286 / 6
p = 47.67 (rounded to the nearest whole number)
Since we can't have a fraction of a page, we discard this solution.

3) 6p = 386
Divide both sides by 6:
p = 386 / 6
p = 64.33 (rounded to the nearest whole number)
Again, we discard this solution.

Therefore, the number of pages in Bridget's album is 31.

Now, to calculate the cost of preserving each page, Bridget pays $2.85 per page. Therefore, the total cost of preserving the entire album can be calculated by multiplying the number of pages by the cost per page:

Total cost = number of pages × cost per page
= 31 × $2.85
= $88.35

Therefore, Bridget spends $88.35 to preserve the entire album.