Solve 1/1-cosx + 1/1+cosx = 8 for 0°<x<360°​

Adaycare center charges a $75 enrollment fee plus $100 per week. which of the following represents the cost of sending a child to daycare for 14 weeks?

How do you use the elimination method for this question? explain, because i really want to understand!

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much