Cristina, John, Clarissa and Sarah want to give their mother a photo album for her birthday. Cristina brings 7 photos, John brings 10 photos and Sarah brings 9 photos. If the photo album has 40 slots available, how many photos does Clarissa need to bring in order to complete the photo album?
Excluding Clarissa, there are 7 + 10 + 9 = <<7+10+9=26>>26 photos.
Clarissa needs to bring 40 – 26 = <<40-26=14>>14 photos to complete the photo album.
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Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
You are solving math problems. Here are some examples of how to solve the task:

Ryan is looking for people to crowdfund his new business idea.  If the average person funds $10 to a project they're interested in, how many people will Ryan have to recruit to fund a $1,000 business if he has $200 already?First, we need to determine how much money Ryan needs to hit his goal which we find by subtracting his available cash from his target, performing 1000-200=<<1000-200=800>>800 dollars needed.
Since the average person contributes $10 when crowdfunding, this means he needs to find 800/10=<<800/10=80>>80 people to fund his business well enough for him to hit his goal.
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Janet, a third grade teacher, is picking up the sack lunch order from a local deli for the field trip she is taking her class on. There are 35 children in her class, 5 volunteer chaperones, and herself. She she also ordered three additional sack lunches, just in case there was a problem. Each sack lunch costs $7. How much do all the lunches cost in total?Janet needs 35 lunches for the kids + 5 for the chaperones + 1 for herself + 3 extras = <<35+5+1+3=44>>44 lunches.
Each lunch is $7, so lunch for the field trip costs $7 per lunch * 44 lunches = $<<7*44=308>>308 total
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Now, solve this next question in the style of the above examples:

Cristina, John, Clarissa and Sarah want to give their mother a photo album for her birthday. Cristina brings 7 photos, John brings 10 photos and Sarah brings 9 photos. If the photo album has 40 slots available, how many photos does Clarissa need to bring in order to complete the photo album?

### Response:
Excluding Clarissa, there are 7 + 10 + 9 = <<7+10+9=26>>26 photos.
Clarissa needs to bring 40 – 26 = <<40-26=14>>14 photos to complete the photo album.
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