Write a proportion to find how many points x a student needs to score on a test worth 80 points to get a test score of 80%. Don't solve it just write a proportion.

Acircle has a circumference of 7.850 units. what is its radius?

An internet company charges $8.95 per month for the first 3 months that it hosts your web site. then the company charges $11.95 per month for web hosting. how much money, in dollars, will the company charge for 8 months of web hosting?

Which is the focus of a parabola with equation y2=4x