Answer:
The answer is 23.86 but ya gotta round up to 23.4 so its A
Answer:

Step-by-step explanation:
First, we have to write 8 + x, but since it's half of that we write it as a fraction with a 2 on the bottom to halve it.
The answer should be 12.2
7^2+10^2=c^2
49+100=c^2
149=c^2
12.2=c
There is more than one way to solve this.
250° : 50min.
You can divide each side by ten for 5 minutes.
50/10 = 5 minutes
250/10 = 25°
divide 486 by 9 = 54
it would take about 54 minutes