Use properties of equality to simplify each of the following expressions so that you can simplify them in your head. identify the properties used and describe how you used them.
1. 4 • (–3) • 5
2. (2.25 • 23) • 4
3. 4/5 x 5/4 x -3
4. 5 • 12 • (–2)
5. 35(26)(0)
6. 65 • 92 • 17 = 92 • 17 • x

my answer is$ 12

step-by-step explanation:

because 15 -2=12

total amount of money that he should pay if he has not used his duty free exemption is $98

step-by-step explanation:

given a united states citizen returning to the states declares the following items at the customs office: 3 shirts at $8.50 each 2 dresses at $27.50 each 1 pair of gold cuff links at $17.50 per pair. we have to find how much he pay

cost of 3 shirts if one cost at $8.50 is

cost of 2 dresses if one cost at $27.50 is  

cost of 1 pair of gold cuff at $17.50

so, total amount of money that he should pay if he has not used his duty free exemption is   $25.5+$55+$17.50=$98

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step-by-step explanation: