# Tutor profile: Cassidy B.

## Questions

### Subject: Basic Math

Arnold has 17 apples. He gives Jane 3 apples, and she gives him 2 oranges in exchange. Victor also wanted to trade apples for oranges. Arnold gave Victor 5 apples and received 6 oranges in exchange. How many apples does Arnold have left?

The first thing we want to do with this word problem is deciding which information we need, and which information can be 'deleted'. We only need to know the number that deals with apples, anything about oranges is unnecessary. Arnold started with 17 apples. He gave 3 apples to Jane and gave 5 apples to Victor. Second, we want to determine which operation we want to use (addition, subtraction, multiplication, etc...). In this case, it's subtraction because Arnold is giving away apples. Arnold started with 17 apples and gave 3 to Jane. 17 apples - 3 apples = 14 apples Arnold has 14 apples and gave 5 apples to Victor. 14 apples - 5 apples = 9 apples Arnold has 9 apples left.

### Subject: Biology

What are the DNA bases and how do they bond to each other? How does RNA differ from this pattern?

There are four DNA bases adenine, guanine, cytosine, and thymine. Adenine pairs with thymine, while guanine pairs with cytosine. RNA does not contain thymine and instead has uracil which pairs with adenine.

### Subject: Algebra

A printer company charges a 1-time order processing fee of $25. Booklets cost $1.15 each, flyers cost $0.75, and business cards are $0.35 each. How much will Jane's total cost be if Jane wants to print 20 booklets, 250 business cards, and 75 flyers?

First set up an equation to represent her total cost. Total Cost = T, Number of booklets = b, number of flyers= f, number of business cards = c, one time fee = p T= p + $1.15b + $.75f + $.35c Second, fill in all known values. p=$25, b=20, f=75, c=250 T is the total cost which is what is being calculated. T= $25 + $1.15(20) + $.75(75) + $.35(250) Third, follow an order of operations and solve for T. T= $25 + $23 + $56.25 + $87.50 T= $191.75 Jane's total cost is $191.75.

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