The radius of the circle above is 39 mm. What is the circumference of the circle? (Use a = 3.14.)

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

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

Need this asap if anyone can i would be very grateful. if you could show workings that would really