There are 78 students from a local high school attending a concert. the concert hall has 40 rows of seats. the first row has 50 seats, and each row after that has 4 more seats than the one before. if all 78 students sit in one row and are as close to the front row as possible, in which row did the students sit? a) row 7 b) row 8 c) row 11 d) row 12

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?