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Bukti:

1. Law Firm Salary Formula

* Formula: S = 1.10C + 3,000Y

* Explanation: The total salary (S) is calculated from the current salary (C) plus a performance bonus (10% of C) and an experience bonus ($3,000 per year).

* Answer: $180,000

2. Car Repair, Currency Exchange, and Travel Costs

* Car Repair: C = 60t + P

* Explanation: The total cost (C) is the labor cost ($60 per hour, t) plus the cost of parts (P).

* Currency Exchange: C = 10 + 1.3E

* Explanation: The total cost (C) is a fixed fee of $10 plus the cost of the euros (E) at an exchange rate of 1.3.

* Travel Costs: C = 5x + 10y + Gm

* Explanation: The total cost (C) is the rental car fee ($5 per day, x), the training cost ($10 per hour, y), and the gas cost (G per mile, m).

3. Integer Arithmetic

* Explanation: This problem tests the addition and subtraction of positive and negative numbers. Subtracting a negative number is the same as adding a positive one.

* (a) 24

* (b) 43

* (c) -11

* (d) -35

* (e) -69

4. Order of Operations (BODMAS/PEMDAS)

* Explanation: This problem follows the order of operations (BODMAS/PEMDAS) rule: Multiplication and Division are done before Addition and Subtraction.

* (a) -14

* (b) -6

* (c) -5

5. Simplifying Algebraic Expressions

* Explanation: This problem requires you to combine like terms (terms with the same variable).

* (a) 3y (Combine the ‘x’ terms and the ‘y’ terms)

* (b) 6a^2b^2c (Combine the numbers and the like variables)

* (c) 12gwzb^2k^2 (Combine the numbers and the like variables)