Answer:
20
Step-by-step explanation:
500
because when you power to the second power a square root, it cancels and the answer is the number you originally had
C i believe because 180 is the overall degree and 50+28=78 and 180-78=102
First, 10 1/2 is the same as 21/2
If there are 12 inches in a foot then
21/2*12=126 inches
