Answer:
x=7
Step-by-step explanation:
x+15=2x+8
x-x+15=2x-x+8
15=x+8
x=7
The scale factor is:

So you divide the corresponding lengths and the ratio you get is the scale factor. Hope it helps!
Answer:
3150 is right answer......
There’s 60 seconds in a min
60x54=3240
The area of the sector is given by the equation,
A = πr²(x / 360°)
where x is the number of degrees in the figure.
25π ft² = (πr²)(60/360)
The value of r is 12.25 ft. Then, we use this value to calculate for the circumference of the sector.
C = 2πr(x/360)
Substituting,
C = 2π(12.45)(60/360)
C = 12.83 ft³