NEED HELP ASAP!! i got a 60 on a quiz and quizzes count as a %15.00 of our grade i currently have a 87 in the class how much is that going to bring my grade down?

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

The total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?

Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.