An equation was used to predict the number of possible enrollments in an afterschool program for the first 6 months of the year. the actual enrollments are also listed.
actual enrollment 55 80 95 100 115 90
predicted enrollment 75 80 85 90 95 100
the sum of the residuals is

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

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?