Each manga book is 4.99 and an anime collectible is 24.99 if you spent in total 50$ in total how much manga and anime collectibles
did you buy ? let x equal 3$

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

The center of a circle represent by the equation (x+9)^2+(y-6)^2=10^2 (-9,6), (-6,9), (6,-9) ,(9,-6)

Ineed with number 6 , explain how to get 1978