Suppose you are in a class where your grade is determined by the number of points you earn out of the total number of possible points. you earned 375 out of a possible 500 points. your teacher offered an extra credit assignment on which you earned 50 points. these 50 points were added to your earned points, but not the total possible points.

your grade in the class after earning the 50 points of extra credit is %

Which is equivalent to 10/12? options: 10/18 5/6 3/12 9/11

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling