The radius of a circle is 2 miles. What is the circle's circumference in terms of ?
Reference:
C-dx
C-2rx
A. 2x miles
B. 4x miles
O C. 6x miles
D. 8x miles

Acarnival sold tickets for $1.50 for adults and $1.00 for students. there were 54 tickets sold for a total of $70.50. write a system of equations to represent the number of adult tickets,x, and the number of student tickets,y. find the solution and explain what it means. i'll you if you me

Me. i can't figure out this question. give an explanation too. .

Select the correct answer. what is the exact value of sin (157.5°)? a. 'sqrt(2 - sqrt(2))/2 b. *"-"'sqrt(2 + sqrt(2))/29 c.'sqrt(2 + sqrt(2))/4" d. "-"sqrt(2 + sqrt(2))/4)