20.50 * 0.8 = $16.40
16.40 * 0.4 = $6.56
Final selling price = $6.56
Answer:
c = -16
Step-by-step explanation:
2c = -32
c = -16
The answer for this is 15.
The value of x in the given right triangle is approximately 7.14
<h3>How to find unknown side in a right triangle?</h3>
- Hypotenuse = 10
- opposite = x
- Adjacent = 7
Hypotenuse² = opposite² + adjacent ²
10² = x² + 7²
100 = x² + 49
100 - 49 = x²
51 = x²
x = √51
x = 7.14142842854284
Approximately,
x = 7.14
Learn more about right triangle:
brainly.com/question/2217700
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