Answer:
13.5% Decrease
Step-by-step explanation:
Use formula (change in value / original value) * 100
Change in value = 3.70 - 3.20 =0.50 Change in value is 0.50
Original Value = 3.70
Use the formula (0.50/3.70) * 100 = 13.5 % Decrease
Answer:

Step-by-step explanation:

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Answer:
x=3
Step-by-step explanation:
3x + x + x + x − 3 − 2 = 7 + x + x
Combine like terms
6x -5 = 7+2x
subtract 2x from each side
6x-2x -5 = 7+2x-2x
4x -5 = 7
Add 5 to each side
4x-5 +5 = 7+5
4x =12
Divide by 4
4x/4 =12/4
x=3