Laura's Cafe has regular coffee and decaffeinated coffee. This morning, the cafe served 90 coffees in all, 27 of which were regular. What percentage of the coffees were regular?

At his new job, jeremiah can choose an hourly rate of $9 plus a $50 weekly bonus for opening the store, or an hourly rate of $10 per hour with no opening bonus. the equations model his salary options. y = 9x + 50 y = 10x

1. are the triangles similar and if so why? what is the value of x? show your work.

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out