Charmaine's penny bank is 1/10 full. after she adds 400 pennies, it is 1/2 full. how many pennies can charmaine's bank hold

Acircle has the equation (x-2)^2 +y^2 =5. what are the coordinates of the circle's center?

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

What is the value of f(x) = 2.2 for f(-2)?