Answer:
31.5 ft²
Step-by-step explanation:
7x4.5=31.5 ft²
We have the triangle 30° - 60° - 90°.
The lenght of the sides are in proportion: 

Answer:
<h3>sum of 5 times of x and thrice of y is 106</h3>

Answer: 1,904.92308 if you round it that will be 1904.9 or 1904.92
I used a calculator
Answer:
7. Approximately 402.7 inches or 2pi times 64
8. 31.83 To solve this you know 2pi r is an equation for the radius. 2πr=200 and r=200/2π=100/π= 31.83.
9. The one with pi in the equation because 3.14 is only a piece of pi but the symbol represents the whole number which goes on forever.
Step-by-step explanation: